Exam 2: Exstintion: How Psychologists Do Research

_______________ is an experiment in which neither the subjects nor the individuals running the experiment know if subjects are in the experimental or the control group until after the results are tallied.

The purpose of a single-blind or double-blind study is to:

People who are willing to take part in surveys differ from those who decline to take part.This phenomenon is called:

An advantage of observational studies is that:

Explain the purpose and process of peer review.

When mental abilities are studied through cross-sectional methods,the results conflict with the findings from longitudinal studies.Explain the basic procedures in each type of study and then provide an example of why each method yields different results.

Professor Gaggos wants to determine whether the needs for personal space are different in Greece than they are in the United States.His results will be used to train business executives in maintaining appropriate conversational distances.The research method appropriate to his purpose would be:

When Joyce takes a personality test she is told that the test is reliable,that is,it:

Which of the following correlations is the strongest?

Why is it important to go beyond averages when summarizing data? What other descriptive statistics are used to help interpret data?

A/an _______________ is a measure of how strongly two variables are related to one another.

Reliability in tests means that:

The text describes an example of experimental design to test the hypothesis that talking on a cell phone impairs driving skills.Explain why a control condition would be important to include in testing this hypothesis.How should subjects be assigned to conditions? How can the researchers design the experiment so that the only difference between both conditions is the use of a cell phone?

Case studies are most commonly used by clinicians.

The American Psychological Association's ethical guidelines require researchers to show that any deceptive procedures are justified by a study's potential value.

Is there a critical period for language? When the sad story of Genie was broadcast over national television,many people wondered what the future would hold for a 13-year-old girl who had survived on minimal physical care.What did psychologists learn about language acquisition through their efforts to teach language to Genie? In what ways does Genie's story illustrate some drawbacks to the case study method?

Rarely does a psychological study have completely straightforward results.Usually there is some possibility that the difference between two groups could be due to chance.Explain how inferential statistics help us determine how statistically meaningful a study's results are.

For his adult development class,Barry is systematically recording behaviors at an assisted-care facility,making sure that he doesn't interfere with the behaviors.Barry is engaged in:

Psychologists measure alternate-forms reliability by giving different versions of the same test to the same group on two separate occasions.

A researcher finds that there is no correlation between the color of the house you grew up in and your IQ.This relationship,as indicted by these correlation coefficients,is: