Psych sample quiz
2, 11, 2, 3, 3, 4, 2, 5 What is the mode of the number set above?
2
−3, 3, 0, 3, −3 What is the standard deviation of the numbers above?
3
12, 3, 3, 4, 8 What is the mean of the set of numbers above?
6
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
What is the best way to ensure that results of a study are generalizable to a population?
By using a random selection of people in that population
Dr. Patel is conducting a study to test a hair-growth shampoo she is developing. She instructs fifty participants to use the hair-growth shampoo once daily for a month and another fifty to use a regular shampoo once a day for a month. Dr. Patel measures the participants' hair length at the beginning and the end of the thirty days. Which of the following is the dependent variable?
Change in hair length
Ivan Pavlov was most well known for which of the following?
Conditioning dogs to salivate to the sound of a bell
Which of the following is a term for a variable that researchers do not control and that can affect the results of a study?
Confounding variable
Which of the following scenarios is regulated by federal law?
Dr. Mast, a psychologist, has a client, Tim, who threatens to seriously harm his brother, Carl. Tim has a history of serious violence and the means to carry out the threat; therefore, Dr. Mast must inform Carl.
Explaining a Correlation
Hot weather is related to both ice cream sales and snake activity.
Marjorie's little brother tends to bother her when he is bored. Marjorie wants to figure out which toy will keep her brother occupied the longest so he will not bother her. She conducts a study where each day at 6P.M. for a week she gives her brother a different toy and on one of the days she gives him no toys to play with. She measures the amount of time he spends playing with each toy before he comes to bother her. Which of the following is the independent variable in this example?
Type of toy
Dr. Larson was interested in whether classical music helps students perform better on a test. Dr. Larson randomly assigned half of the study's participants to a group that listened to classical music while taking a test. The other half of the participants did not listen to music while taking a test. The research design Dr. Larson used is
an experiment
Dorothea Dix was known for
documenting the poor conditions of mental asylums, which eventually led to their reform
A researcher uses debriefing when he
explains the true purpose of a study immediately after the study is complete
The most important reason to use operational definitions in psychological research is it
helps everyone involved with the research understand and collect data in the same manner.
Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Her research method can most accurately be described as
naturalistic observation
The generalizability of a study increases when
the sample is more representative of the population
Professor Ahad has forty-three students in section one of the psychology classes she teaches and fifty-two students in section two. Section one meets at eight a.m. and, section two meets at one p.m. Professor Ahad gives all of her students the same final exam, and those in section two score significantly higher than those in section one. Professor Ahad concludes that her section one students are academically inferior to students in section two. The biggest problem with Professor Ahad's conclusion is that
time of day is a confounding variable in this scenario.
