GCU PSY550 Midterm Exam

GCU PSY550 Midterm Exam

GCU PSY550 Midterm Exam

Question

1. Define and
describe the six steps of the scientific method. Give an example of each step.

2. For each of the research topics listed
below, indicate the type of nonexperimental approach that would be most useful
and explain why.

Pushing ahead
in line

Daydreaming

Locating the
most popular painting in an art gallery

Studiousness
in college students

Determining
whether a particular patient has improved with psychotherapy.

3 Researcher Sandy Beach found a correlation
coefficient of +2.3 between variables X and Y. She is thrilled because that
correlation is “like, way high.” She also feels that this answer “proves that X
is like, causing Y.” What are three problems with Sandy’s conclusions?

4 List the main
sections (and subsections) of a research report.

5. When is it
appropriate for a researcher to use deception in a study? When is it not
appropriate? How can the negative effects of deception be minimized?

6. Contrast experimental with
quasi-experimental methods; generally speaking, which methods are most useful?

7. Compare and contrast the following terms: (a) test-retest
reliability with inter-rater reliability, (b) content validity with both
predictive validity and construct validity, and (c) internal validity with
external validity.

8. Contrast probability and nonprobability sampling methods;
generally speaking, which methods are most useful?

9. Use Stevens’
model of measurement scales to answer these questions:

What type of
scale is used when the variable is social class? Explain.

What type of
scale is used when the variable studied is a Top 40 list of popular songs?
Explain.

What type of
scale is used when the variable studied is intelligence scores (for example, on
the Stanford-Binet-R)? Explain.

What type of
scale is used when the variables studied are low and normal birth weights of
newborns? Explain.

10. When designing
survey questions, how would you control for each of the following response
styles: (a) willingness to answer, (b) position preference, and (c) yea- or
nay-saying?

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