When a change in the dependent variable could be due to participants systematically dropping out of an experiment, __________ is a threat to internal validity
a. attrition
b. testing
c. diffusion of treatment
d. instrumentation
A
Political Science
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What does the Federal Equal Credit Opportunity Act of 1974 prohibit?
a. unfair practices in setting interest rates b. sex discrimination in bank hiring decisions c. credit denial for a poor or nonexistent credit rating d. sex discrimination in credit transactions
Political Science
Which of the following is NOT an important group of descriptive statistics?
A) Frequency distributions B) Graphical representation of data C) Summary statistics D) Tests for mean differences
Political Science