ap psych
Using the diagram, during which of the following do individuals typically dream?
(D) refers to REM sleep, which is when people have dreams.
Researchers are interested in how language develops at different rates when children are learning to speak. Researchers interviewed parents about their 15-month-old child's vocabulary ability. Researchers then proceeded to interact with each child to see how many words they could encourage the child to say in a 30-minute period. The results of the study are presented in the table. Using the data in the table above, what is the median number of words in a 15-month-old's vocabulary?
11
Which of the following is the mean age at which children in this sample began to walk?
11
Dr. Scott was interested in whether using mnemonics increases memory recall. He randomly assigned 20 college students in his anatomy class to two groups. Participants in Group A were given a list of 20 class concepts and 10 minutes to study them using the method of loci. Those in Group B were given the same list but were told to repeat each term 10 times as their study method. When each group finished the task, Dr. Scott administered a recall quiz. The scores for each group are presented in the table. What is the median score for Group A and Group B, respectively?
16; 7
A school collected data on student absences during stressful final exam periods when their sympathetic nervous systems would be activated. They graphed the data at the end of the academic term. Based on the graph, what is the most likely standard deviation for the number of days students missed classes?
2.0
Mr. Theodore, a high school math teacher, believes that the use of cell phones in class causes distractions while learning. He conducted a study on his students. Over the course of eight weeks, he noted how many students put their devices in a locked bin each class period. At the end of each week, he gave the students a quiz on the class content to see if removal of the device increased focused learning. The results are presented in the table. What is the range for the mean quiz scores?
4
Shayna is chronically tired and decides to record how many hours of sleep she is getting. Her data for the last ten nights include the following estimated hours: 8, 8, 8, 4, 6, 3, 6, 10, 6, 5. What number represents the median value?
6 ( the middle vaule when ranked)
A study was conducted to determine the power of a new chemical to increase the quality of olfactory sensations in humans. Participants were asked to rate the quality of a chocolate bar, before and after inhaling the chemical on a scale of 1 to 10, with 1 meaning low quality and 10 meaning high quality. Analysis of the data showed that the difference in perceived quality of the chocolate bar before and after exposure to the chemical was statistically significant. If these data were plotted on a graph, what percent of the scores for the difference in perceived quality of the chocolate bar are within 2.29 and 3.71?
68 ( When referring to the normal curve, 68% of scores occur within one standard deviation above and below the mean. (Mean = 3, SD = .71).
Skylar experienced brain damage after a car accident. Researchers were interested in assessing whether Skylar's visuospatial abilities were affected. Skylar was shown 3 geometric figures, one at a time, for ten seconds. After each presentation, Skylar drew each one on a piece of paper. Researchers compared Skyler's drawings to the original figure and scored each. Which of the following research methods is being used to assess Skylar's abilities?
A case study
To determine if different parenting styles influence social development from childhood to adulthood, a developmental researcher would likely want to use which type of study?
A longitudinal study
Which study is a researcher who wants to draw correct cause-and-effect conclusions about the sense of smell likely to conduct?
A study in which the researcher randomly assigns 50 people to a group that is exposed to a strong smell of roses and 50 people to a group that experiences an odor-free environment to see whether the group exposed to the strong smell of roses reports experiencing more memories. ( An experiment with random assignment and a control group allows the researcher to draw cause-and-effect conclusions, and strong smells do evoke memories from past experiences.)
Which of the following studies is from an evolutionary perspective?
A study to see if women were more attracted to men who liked children than men who did not like children
Researchers presented a picture of four stimuli to a group of college students and measured their heart rate by counting how many beats occurred in one minute. Which of the following brain structures would be most responsible for the emotional reaction as measured by heart rate after seeing the spider and the snake?
Amygdala
A research study seeks to examine the influence of REM sleep disruption on memory and attention. To investigate this, researchers gather a representative sample of healthy participants ages 18 to 40 years old with no prior history of sleep disorders or psychiatric conditions. They give each participant a baseline cognitive functioning test. The participants are housed in a sleep research lab for the duration of the study where they have their REM sleep disrupted multiple times each night. Following a three-week period of REM sleep disruption, participants will repeat the initial cognitive assessments to evaluate changes in performance. Which of the following research methods is being used in this study
An experiment
Professor Belvedere wants to help her anatomy students memorize the names of different parts of the body. Which of the following techniques will best help her students?
Asking them questions about the meaning of each word
Dr. Lloyd wanted to demonstrate the effects of adverse childhood experiences (ACEs) on later health outcomes for residents of a local retirement community. He surveyed each of the 205 residents about their childhood experiences. Later, he obtained permission from the residents to look at their health records from the physicians at the community medical center. He then calculated the odds (by percentage) of having certain health conditions. The results are presented in the table. Why would Dr. Lloyd be interested in studying the social and cultural backgrounds of the residents with kidney disease, heart disease, and stroke?
Because sociocultural background can influence individuals' perceptions of ACEs.
Which of the following scenarios is an example of retroactive interference?
Carl tries to remember the name of his first boss, but he cannot because he keeps thinking of the name of his current boss.
Dr. Miller believes cell phone usage affects short-term memory ability. He randomly selected 20 male students from his university to participate and gave them a survey. Participants were asked a series of questions about how often they use their cell phone and whether they recalled information about world events. The data from the survey is presented in the graph below. Which of the following accurately identifies the research method used?
Correlation
Dr. Lloyd wanted to demonstrate the effects of adverse childhood experiences (ACEs) on later health outcomes for residents of a local retirement community. He surveyed each of the 205 residents about their childhood experiences. Later, he obtained permission from the residents to look at their health records from the physicians at the community medical center. He then calculated the odds (by percentage) of having certain health conditions. The results are presented in the table. Which of the following best describes the type of research conducted by Dr. Lloyd?
Correlational
Mr. Theodore, a high school math teacher, believes that the use of cell phones in class causes distractions while learning. He conducted a study on his students. Over the course of eight weeks, he noted how many students put their devices in a locked bin each class period. At the end of each week, he gave the students a quiz on the class content to see if removal of the device increased focused learning. The results are presented in the table. Which of the following describes the method of research conducted by Mr. Theodore?
Correlational
In studies of stages of development, why is it important to include participants that represent a diverse range of cultural backgrounds?
Culture can influence when and how individuals experience developmental changes in their lives.
Researchers are interested in the relationship between the classical conditioning of an eyeblink response and aging. While taking an intelligence test, elderly subjects wore special goggles that administered a puff of air into their eyes after a tone sounded. Although participants were told the purpose of the experiment was to see if intelligence declined as people aged, the real purpose of the study was to measure the length of time it took for elderly participants to learn the association between the sound of the tone and the puff of air. Which of the following ethical procedures must be used to account for the deception used in this study? Responses
Debriefing
Dr. Copeland is interested in studying how diet impacts the nervous system activity of professional dancers. She randomly assigns a group of professional ballet dancers to either a protein-rich diet or a carbohydrate-rich diet. After three weeks on each food plan, she measures the function of specific parts of the brain and nervous systems while they are dancing. Which of the following is true about Dr. Copeland's study?
Dr. Copeland is conducting an experiment. ( Dr. Copeland has randomly assigned participants to two experimental conditions)
Dr. Jones conducted a study in which he surveyed participants and compared their reported levels of physical activity to their measures of brain plasticity. Dr. Jones concludes that higher levels of physical activity cause a greater degree of neuroplastic changes in the brain. He plans to publish his findings. What mistake is Dr. Jones making in his research conclusion?
Dr. Jones's study was correlational, so it cannot generate a causal conclusion.
Dr. Lofter is a professor of cognitive psychology at a university. He has been collecting data from student performances on tests throughout the school year. Every other test is formatted as either a fill-in-the-blank test, which relies on recall, or a multiple-choice test, which relies more on recognition. At the end of the year, Dr Lofter publishes the research findings in a journal on cognitive sciences showing how students perform better on recognition tests than recall tests. Which of the following ethical violations did Dr. Lofter commit?
Dr. Lofter's students did not give informed consent to be a part of the research.
Dr. Popoca studied the characteristics of individuals experiencing red-green and yellow-blue color vision deficiency. They recruited one individual with each type of color vision deficiency and assessed each person three times per week for a period of three months. They found that all of the participants in their study were left-handed. Following their research, Dr. Popoca concludes that all individuals who experience dichromatism are left-handed. Why is their conclusion inappropriate based on their research strategy?
Dr. Popoca has conducted a case study, which cannot be generalized to the population.
When Gustavo goes through lists of inventory items and thinks about whether each one is a fruit or not, he remembers more of the items on those lists later than when he goes through lists of inventory items and does not think about what each item is. Which of the following concepts best explains Gustavo's performance?
Elaborative encoding, because engaging in deeper processing improves memory.
Mr. Flores is trying to convince his students that there are more effective ways to study. He has his students use two different strategies to remember a list of 20 random words over two consecutive weeks. During week one, the students repeat the words 5 times, and during week two, they create an analogy for each word based on its definition. The results of the study were posted on his classroom door as proof of how students should study. Which of the following memory storage concepts is Mr. Flores studying by having students create analogies during week 2?
Elaborative rehearsal
In an experiment, participants were randomly assigned to play either a violent or nonviolent video game for 20 minutes. Afterward, they read a story about a car accident. The children were observed and their reactions to the story were documented. The researchers categorized the aggressive responses as verbal, cognitive, or emotional. According to the graphed results, which type of response was most frequently demonstrated by participants who played violent video games?
Emotional responses
Memory researchers want to determine if using a mnemonic device will prevent participants from forgetting information. They present a list of nonsense syllables to participants that have been randomly divided into two different groups. One group is instructed to use an assigned mnemonic device to remember the words while the other group is instructed to just try to recall the words without using any memory aid. Participants are then asked to recall the nonsense syllables after one hour, one day, and one week. Which of the following research designs best describes this research?
Experiment
When a person behaves in ways that conform to commonly accepted social roles for males or females, which of the following is the person displaying?
Gender identity
Dr. Abrams treats patients with anxiety by using a form of counterconditioning called exposure therapy. To test the effectiveness of this technique, Dr. Abrams had each patient report their level of anxiety while repeatedly exposing each person to an anxiety-inducing situation for one hour using a virtual reality headset. Patients rated their anxiety from 0-8, with 0 being no anxiety to 8 being extreme anxiety. The results are presented in the graph. Which of the following concepts describes the learning process experienced by Dr. Abram's patients?
Habituation
Rik, who is an adolescent, was always studious and quiet throughout childhood. His parents are concerned because he suddenly dyed his hair, pierced his tongue, and started hanging out with a different crowd. A few months later, he tried out for the football team and became so active in sports that he neglected his schoolwork. According to psychologists, which of the following would best explain Rik's changes in behavior?
He is going through the process of exploring his identity that many adolescents experience.
Shamir wants to be a doctor like both of his parents when he gets older. He never thought of doing anything else. Which of the following best explains Shamir's decision?
He is identity foreclosed
Dr. Miller believes cell phone usage affects short-term memory ability. He randomly selected 20 male students from his university to participate and gave them a survey. Participants were asked a series of questions about how often they use their cell phone and whether they recalled information about world events. The data from the survey is presented in the graph below. When Dr. Miller sees that the results yield a strong negative correlation coefficient, she tells a colleague that she knew that would be the result all along. Which of the following cognitive biases is Dr. Miller using when she speaks to her colleague?
Hindsight bias
Researchers were interested in whether there is a correlation between binocular cues and depth perception. Which of the following would be an operational definition of depth perception?
How many times a person accurately judges the distance of an object
Which of the following best explains why most research about the effects of teratogens during pregnancy is correlational rather than experimental?
It would be unethical to manipulate the exposure to teratogens during a pregnancy due to the potential harm to individuals.
Dr. Abrams treats patients with anxiety by using a form of counterconditioning called exposure therapy. To test the effectiveness of this technique, Dr. Abrams had each patient report their level of anxiety while repeatedly exposing each person to an anxiety-inducing situation for one hour using a virtual reality headset. Patients rated their anxiety from 0-8, with 0 being no anxiety to 8 being extreme anxiety. The results are presented in the graph. Which of the following describes the measurement instrument that Dr. Abrams' patients used to report their anxiety?
Likert Scale
Dr. Hayes is studying people's memories. She had a group of randomly selected participants learn a list of dates related to historical events. Group 1 had to recall the dates without any cues, and Group 2 was given a one-word cue to help them with their recall of the dates. Dr. Hayes then asked the participants to rank how strongly they agreed with the following statement: How confident are you that you remembered the dates accurately? Participants were given a range of numbers to choose from to rank their level of agreement, from 1 meaning they were not confident at all to 5 meaning they were absolutely confident. Which of the following measurement tools was Dr. Hayes using in this study?
Likert scale
Dr. Barry conducted a study in which participants were put into a driving simulator that mimicked the experience of driving a car on the highway. Participants were split into three groups: The Silence condition, where participants drove in silence with no external distractions The Radio condition, where participants listened to the radio while driving and were told they would be asked questions about what they heard after The Cell Phone condition, where participants received text messages every 90 seconds and were told they would be asked questions about the messages after At random intervals during the driving time, participants would see obstacles they needed to avoid, and the simulator would record how long it took the participants to hit the brake. The results of the study are given in the figure: What conclusion could the researchers best draw from the results collected in the study?
Listening to the radio does impair a driver's responsiveness, but not as much as paying attention to a cell phone.
Mr. Flores is trying to convince his students that there are more effective ways to study. He has his students use two different strategies to remember a list of 20 random words over two consecutive weeks. During week one, the students repeat the words 5 times, and during week two, they create an analogy for each word based on its definition. The results of the study were posted on his classroom door as proof of how students should study. Mr. Flores is attempting to get his student to encode the information into which of the following systems of memory?
Long term memory
Researchers are interested in studying gender development across the lifespan. Researchers recruited 500 children to participate in a study. All of the children were seven years old when the study began, and researchers plan on studying these 500 children for a period of 20 years. This study would be an example of what type of research design?
Longitudinal
A study was conducted to determine the power of a new chemical to increase the quality of olfactory sensations in humans. Participants were asked to rate the quality of a chocolate bar, before and after inhaling the chemical on a scale of 1 to 10, with 1 meaning low quality and 10 meaning high quality. Analysis of the data showed that the difference in perceived quality of the chocolate bar before and after exposure to the chemical was statistically significant. Which of the following should the researchers in this study do out of a concern for ethical data collection?
Make sure the chemical does not affect the participants' olfactory systems long-term.
A study was conducted to determine the power of a new chemical to increase the quality of olfactory sensations in humans. Participants were asked to rate the quality of a chocolate bar, before and after inhaling the chemical on a scale of 1 to 10, with 1 meaning low quality and 10 meaning high quality. Analysis of the data showed that the difference in perceived quality of the chocolate bar before and after exposure to the chemical was statistically significant. Which of the following should the researchers in this study do out of a concern for ethical data collection?
Make sure the chemical does not affect the participants' olfactory systems long-term. ( This shows that there is not long-term harm to the participants because they were part of the study.)
Mr. Theodore, a high school math teacher, believes that the use of cell phones in class causes distractions while learning. He conducted a study on his students. Over the course of eight weeks, he noted how many students put their devices in a locked bin each class period. At the end of each week, he gave the students a quiz on the class content to see if removal of the device increased focused learning. The results are presented in the table. How did Mr. Theodore operationally define focused learning for his study?
Mean quiz scores
Mr. Flores is trying to convince his students that there are more effective ways to study. He has his students use two different strategies to remember a list of 20 random words over two consecutive weeks. During week one, the students repeat the words 5 times, and during week two, they create an analogy for each word based on its definition. The results of the study were posted on his classroom door as proof of how students should study. Based on the information presented in the scenario, which of the following ethical procedures did Mr. Flores violate?
Mr. Flores should have kept the students' results anonymous.
Mr. Gregg wants to help his second-grade students improve their reading skills. He tests the students with 20 reading comprehension questions at the beginning of the year. Every week throughout the year he gives the students 30 minutes of reading comprehension tips. He tests the students at the end of the year with 20 reading comprehension questions that are similar in difficulty to those on the original test. He finds that the students' reading comprehension has increased and concludes that his tips worked. Which of the following describes the most significant problem with Mr. Gregg's study?
Mr. Gregg failed to account for changes in the students' maturity.
Dr. Miller believes cell phone usage affects short-term memory ability. He randomly selected 20 male students from his university to participate and gave them a survey. Participants were asked a series of questions about how often they use their cell phone and whether they recalled information about world events. The data from the survey is presented in the graph below Which of the following is an operational definition for short-term memory used in this study?
Number of correct details remembered about world events
A team of sports psychologists is investigating the effects of different reinforcement schedules on athletes' performance and motivation. They plan to recruit high school athletes from various teams to participate in the study. Which ethical consideration should researchers prioritize when recruiting high school athletes for their research?
Obtain informed assent from the athletes and informed consent from their parents
our-year-old Caleb declares, "For breakfast, I eated pancakes and eggs." Which of the following best accounts for this language error?
Overgeneralization.
The data set represents the scores of students who took a standardized college placement exam at their own school and later took the same test at a neighboring school. Based on the data, which of the following conclusions can be made?
Participants scored better when testing in a familiar location.
Dr. Storck randomly assigned a group of adults to two groups. Group A was asked to memorize a list of 20 words that are all names of food items. Group B was asked to memorize a list of 20 random words, none of which were names of food items. A week later, Dr. Storck asked the participants to memorize a new list of 20 words, all of which were the names of different food items. He recorded how many words each group recalled accurately. The data he collected are shown in the graph. Which of the following best represents Dr. Storck's likely hypothesis?
People are less likely to remember new food words after they have previously learned a list of food words.
Michael has recently begun to demonstrate egocentrism. Although egocentrism exists at all ages, Jean Piaget found that children are most egocentric during which stage of cognitive development?
Preoperational stage
A manager of a company that makes self-driving cars is interested in showing that self-driving cars cause fewer accidents than traditional cars. She recruited 30 people for her study. After keeping her participants awake for 24 hours straight, she randomly assigned them to either drive a traditional car or a self-driving car. Which of the following is the most significant ethical factor that might influence the approval of this study?
Protection from harm ( The participants have been kept awake for hours which will cause delayed reflexes and slowed thinking needed to drive a car safely.)
Dr. Abrams treats patients with anxiety by using a form of counterconditioning called exposure therapy. To test the effectiveness of this technique, Dr. Abrams had each patient report their level of anxiety while repeatedly exposing each person to an anxiety-inducing situation for one hour using a virtual reality headset. Patients rated their anxiety from 0-8, with 0 being no anxiety to 8 being extreme anxiety. The results are presented in the graph. Which of the following is a conclusion that Dr. Abrams can make about exposure therapy and anxiety based on the data?
Repeated exposure to anxiety-inducing stimuli reduces anxiety
Two researchers are interested in the social skills by people with synesthesia to perceive color. Researcher A interviews people with this disorder, and Researcher B creates a survey with a dozen questions that the participants answer using a numeric scale. Which of the following is true about this research scenario?
Researcher B is using a quantitative measure.
Students who have faced many obstacles in educational settings were asked to participate in a study that required that they take a test. Many of the students scored poorly on the test. Which of the following ethical issues arises because the students feel that their low test scores are reflective of their abilities, rather than their circumstances?
Risk to participants
A psychologist was interested in how people of different cultures choose a pet. They posted on social media a question that asked people to respond with what kind of animal would make a good pet. Which of the following psychological concepts would best characterize what the psychologist was examining?
Schemas
In an experiment, participants were randomly assigned to play either a violent or nonviolent video game for 20 minutes. Afterward, they read a story about a car accident. The children were observed and reactions to the story were documented. The graph shows how many aggressive responses were made by each group. Which of the following theories is demonstrated by the results as depicted in the graph?
Social learning theory
The trend of IQ scores presented in the graph is most consistent with which of the following?
The Flynn Effect
A corporation created what they referred to as an "intelligence assessment" to give to people who are applying for jobs with their company, which sells medical equipment. The assessment asked questions about popular culture, sports, and historical events that occurred in the United States. Which of the following might explain why the assessment results did not give the company a diverse pool of final candidates?
The assessment lacked validity by only asking about United States cultural and historic topics.
A group of researchers collected the data displayed in the graph. Which of the following psychological concepts is most likely the focus of the research?
The interaction of "nature" and "nurture" ( The researchers are examining the interaction of heredity ("nature") and environment ("nurture") by comparing the intelligence scores of twins and non-twins.)
Dr. Ronaldo wants to measure levels of creativity in the participants in his study. He presents an ambiguous object and records how long it takes for the participants to come up with at least six practical uses for each of the objects. The data in the graph represent the time and the number of participants who completed the six responses within that time range. Which of the following best represents the measures of central tendency in this data set?
The mean will be higher than the mode
The figure represents which model of memory?
The multi-store model of memory
Dr. Copeland is interested in studying how diet impacts the nervous system activity of professional dancers. She randomly assigns a group of professional ballet dancers to either a protein-rich diet or a carbohydrate-rich diet. After three weeks on each food plan, she measures the function of specific parts of the brain and nervous systems while they are dancing. Dr. Copeland found that ballet dancers on a carbohydrate-rich diet had greater activity levels in the somatic nervous system. Which is a prediction that can be made from these findings?
The nervous system activation for any other type of dancers on carbohydrate-rich diets would be similar.
Dr. Shay is designing a research study to demonstrate the serial position effect. They asked 10 of their friends to volunteer as participants in the study. Half of the participants were randomly assigned Group A and shown eight random words on a computer screen. After viewing the words, members of Group A were asked to recall as many words as possible. The other half of the students randomly assigned to Group B also viewed a set of eight random words. After viewing the words, students in Group B were asked to count backwards from one hundred, in increments of 3, before recalling any of the words. What is the design flaw of this study?
The participants in the study were not randomly selected.
A study was conducted to determine the power of a new chemical to increase the quality of olfactory sensations in humans. Participants were asked to rate the quality of a chocolate bar, before and after inhaling the chemical on a scale of 1 to 10, with 1 meaning low quality and 10 meaning high quality. Analysis of the data showed that the difference in perceived quality of the chocolate bar before and after exposure to the chemical was statistically significant. In this scenario, which of the following best describes the finding that the results were statistically significant?
The perceived quality of the chocolate bar went up after being exposed to the chemical, and this was not due to chance. ( When participants had more sensitive olfactory experiences, their ratings of the quality of the chocolate bar went up and statistical significance means that it is likely a reliable finding.)
Alumni of a small high school where everyone knew each other were tracked down twenty years after their high school graduation. Alumni were shown photographs of other individuals they graduated with. First, they were asked if they recognized the person in the photograph. Participants responded "yes" 75% of the time. Next, they were asked if they knew the person's name. Participants could only correctly name the person in the photograph 25% of the time. Which of the following is the dependent variable in the recall condition?
The percentage of people identified by name
The information presented in the graph best represents which of the following aspects of developmental psychology research?
The progression of cognitive and physical abilities throughout the lifespan
Dr. Darcy was interested in whether the primacy or recency effect leads to better memory recall. He conducted a study to test the difference using two randomly assigned groups of participants and the results are presented in the graph. Which of the following statements is true based on this information?
The recency effect leads to better memory recall than the primacy effect.
Researchers analyzed all-day recordings of caregiver-infant interactions at home in a random and representative sample of 100 families. Babies whose caregivers spent the most time speaking directly to them had a larger vocabulary at age two. However, the amount of speech that the babies indirectly heard, for example, by others in the home talking to one another was not related to increased vocabulary. Researchers concluded that the use of more speech directed at babies by caregivers created a larger vocabulary. Which of the following is an accurate statement about this study?
The researchers cannot make a cause-and-effect conclusion using this research method.
Dr. Lloyd wanted to demonstrate the effects of adverse childhood experiences (ACEs) on later health outcomes for residents of a local retirement community. He surveyed each of the 205 residents about their childhood experiences. Later, he obtained permission from the residents to look at their health records from the physicians at the community medical center. He then calculated the odds (by percentage) of having certain health conditions. The results are presented in the table. Which of the following explains why Dr. Lloyd might be unable to generalize his findings to all elderly people?
The sample of subjects is from only one retirement community and may not be representative of all elderly people.
Neurologists trying to find a treatment for Alzheimer's disease selected 100 individuals with moderate to severe symptoms of Alzheimer's disease. Fifty participants were randomly placed into either an experimental condition that received a new medication that acted as an agonist for acetylcholine or the control condition which continued to receive same care as before. The study lasted for ten weeks at which time members of both groups took a cognitive assessment to determine their level of functioning. Which of the following best explains the operational definition of the dependent variable in this study?
The score on the cognitive assessment.
Dr. Picard performs a study of children's perceptions of gender roles. Children are randomly assigned to one of two groups. Children in Group A are shown simplified drawings of people (stick figures) wearing different types of clothing and are asked to sort these based on gender. Children in Group B are shown stick figure drawings of people performing various household tasks such as washing dishes, cooking, mowing a lawn, or fixing a leaky faucet. They are then asked to sort these drawings based on gender. The figure shows two groupings of drawings. Each group shows four stick figure drawings of people. In the first group, one person is wearing a dress, one person is wearing a short sleeve shirt and shorts, one person is wearing a long sleeve jacket and pants, and one person is wearing a short sleeve shirt and skirt. In the second group, one person is holding a bowl and a whisk, one person is washing dishes, one per
The type of drawing the children saw - either people wearing different clothing or people doing different tasks
A research study compares the performance of typically developing children and children with autism spectrum disorder (ASD) on a test of social development. All children are 4 years old, and researchers want to determine if they have a theory of mind. The effect size for the difference in performance between the two groups is presented in the graph. What does this effect size indicate about the difference in performance?
There is a large difference in performance between typically developing children and children with ASD.
A sample of pregnant women is given a high dose of caffeine daily to determine if their babies are born with an addiction to caffeine. Which of the following is an ethical issue in this study?
There is possible long-term harm to the babies.
A researcher is interested in measuring adrenaline levels in male subjects and then comparing those levels to each participant's corresponding level of aggression. The researcher takes blood samples from each male participant to identify their adrenaline levels, and then gives each participant a survey that measures aggression. The results of the study indicate that higher levels of adrenaline were associated with higher rates of aggression. Which of the following best describes why the researcher cannot report a causal relationship in this study?
There was no manipulation of an independent variable.
Dr. Gomez conducts research looking at similarities in identical twins. In one study, she is interested in looking at athletic ability. What do the results in the graph indicate?
When one twin demonstrates high athletic ability, so does the other twin. ( positively correlated )
What cognitive development concept is presented in the image?
Zone of proximal development
Samantha experienced a traumatic brain injury and afterward began to exhibit bizarre symptoms that no one had ever documented before. The best research method to study Samantha would be
a case study. Samantha's symptoms are unique; therefore, it would be best to conduct an in-depth study of her.
Researchers at a local veteran's hospital wanted to explore the impact of traumatic brain injuries on veteran's ability to sleep. Which of the following would the researchers use if they wanted to see the brain activity in a particular area of the brain as the veteran's were sleeping?
fMRI
Dr. Copeland is interested in studying how diet impacts the nervous system activity of professional dancers. She randomly assigns a group of professional ballet dancers to either a protein-rich diet or a carbohydrate-rich diet. After three weeks on each food plan, she measures the function of specific parts of the brain and nervous systems while they are dancing. Which of the following is most relevant to digesting carbohydrate-rich meals and resting after dance practice?
parasympathetic nervous system ( This part of the nervous system helps calm the body and instigates digestion of food.)
Dr. Naum is studying the function of the temporal lobe of the brain by examining the case study of J.S., an individual who incurred damage in this area during a motor vehicle accident. Dr. Naum administers a battery of tasks multiple times over the course of several weeks to assess J.S.'s cognitive abilities. The graph below shows J.S.'s performance on three different tasks. The bar on the left shows his accuracy forming new memories in a lab context, the middle bar shows his accuracy on a driving course, and the bar on the right shows his accuracy on a third task.
remembering events that occurred shortly before his accident
Which of the following biological systems is most likely responsible for an increase in heart rate while experiencing anxiety?
sympathetic nervous system
In an experiment, a researcher showed children a video of a person interacting with a doll. Half of the children watched a video of a person behaving violently toward a doll, and the other half saw a video of a person playing nicely with a doll. The researcher also looked at whether the gender and age of the child made a difference in how they interacted with the doll. In this study, the dependent variable was
the way children interact with a doll
Mary has an IQ score within one standard deviation above the mean score. This indicates her score is best described as having which of the following qualities?
within the middle 68% of people who took the test
