Psychology Exam
Which psychologist would be most likely to conduct research on how a child processes information and solves problems?
A cognitive psychologist.
Dr. Simpson finds a positive .50 correlation between ice-cream-cone sales and violent crimes in a community. What is the best interpretation of this result?
A third variable, such as heat, may account for the association between ice cream sales and violent crime.
Andrea, a psychologist, conducts a study to determine the effect of students' ages on their college grades. She divides a class into two groups: Below Age and Above Age. Members of the Below Age group are less than 18 years of age, whereas members of the above Age group are 18 years of age or above. In this scenario, what illustrates the dependent variable?
College grades
Aaron wants to study the association between sleep deprivation and the number of hours spent on a computer every day. He is not keen to establish causation, but would like to determine whether and how the increase or decrease in one variable is related to the increase or decrease in the other variable. Which research method is likely to be most effective for Aaron's study?
Correlational research
Dennis, a psychologist, conducts a survey on why most people tend to help a crying child. After the survey, he explains that most people help a crying child because they choose to live by higher values such as altruism. In this scenario, Dennis's explanation is reflective of the _____ approach to psychology.
Humanistic
Independent variables are
Manipulated by researchers
The placebo effect is an example of
Participant bias
J.B. Watson and B.F. Skinner believed that
Psychology should focus on an organism's visible interactions with the environment—that is, behaviors.
A correlation coefficient is a statistic that tells the
Strength and direction of association between two variables
What does the magnitude of the correlation coefficient indicate about the variables in a correlation study?
Strength of the relationship between the variables
