1The tendency of extreme cases of the phenomenon to deviate

1.The tendency of extreme cases of the phenomenon to deviate toward a more central position during the course of an experiment refers to:

a.statistical regression

b.turnover analysis

c.instrument variation

d.the main testing effect

e.selection bias

2.The extraneous variable, instrument variation (or decay):

a. does not result from variation in administration of the interview

b. can be acute when there are multiple observers or interviewers

c. is not attributed to the facility with which the interviewer handles the assignment

d. does not occur if minor modification, such as a slight change in the wording of a specific question so as to make it more understandable without changing its meaning, is made

e. does not occur with interviews conducted by the same interviewer

3. The type of study design that affords the researcher the most control is:

a. a field experiment

b. an exploratory design

c. a descriptive design

d. a laboratory experiment

e. a sample survey

4. The use of randomization to eliminate selection bias in experimental designs works best when the groups being compared are small.

true

false

5.You have decided on a quasi-experimental design Time Series Analysis, which involves repeated measurements over time. Which of the following statements is (are) true:

a. This is a longitudinal study

b. There is no separate control group

c. Control over the extraneous variation (experimental biases) is accomplished via statistical analysis rather than the Control group

d. All of the above

e. None of the above

Solution