Experiments differ from descriptive research techniques in that experiments ______.
A) use groups of participants that are carefully matched with respect to key variables
B) track a group of participants for an extended period of time
C) involve the random assignment of participants to conditions
D) are conducted on only a single individual

Question

Quizplus · Accepted Answer

Experiments involve the random assignment of participants to conditions, which allows for the manipulation of an independent variable and measurement of its effects on a dependent variable. Descriptive research techniques, on the other hand, do not involve manipulation or random assignment, but rather rely on observation and description of naturally occurring phenomena. Therefore, choices A, B, and D are incorrect.

Experiments Differ from Descriptive Research Techniques in That Experiments ______