Author Question: In a study using the multilevel, completely-randomized between-subjects design, 48 rats were ... (Read 59 times)

jilianpiloj · **on:** Aug 4, 2018

In a study using the multilevel, completely-randomized between-subjects design, 48 rats were randomly assigned to six groups of eight rats each. Each group was tested at a different level of ambient noise. Maze running speed and accuracy were measured.

The independent variable in this study was

A) the number of rats.
B) speed.
C) accuracy.
D) ambient noise level.

Question 2

In the multilevel, completely-randomized, between-subjects design, participants are randomly assigned to

A) one condition.
B) two conditions.
C) three or more conditions.
D) None of the above