Multiple Choice
The major benefit of random assignment is it
A) reduces the plausibility of alternative explanations for the observed effects.
B) makes it possible to observe the effects of an independent variable on another variable.
C) ensures that the sample chosen for a study is similar to the population from which the sample was drawn.
D) equates the groups before the experimental treatment begins.
E) a and d
Correct Answer:
Verified
Correct Answer:
Verified
Q26: An experimenter was interested in the effect
Q27: Randomization in an experimental design assures<br>A) external
Q28: Exhibit 10-5: Choose the internal validity problem
Q29: A confounding variable is one which<br>A) has
Q30: Exhibit 10-8: Choose the term that is
Q32: Matching of experimental and control subjects, homogeneous
Q33: Exhibit 10-9: Identify the threats to internal
Q34: Exhibit 10-10: Identify the major threat to
Q35: Exhibit 10-6: Choose the intersubject difference control
Q36: Exhibit 10-10: Identify the major threat to