A study is designed to test the effect of light level and noise
level on performance of students. The possible light levels are
fluorescent overhead lighting and desk lamps (with no overhead
lighting). The possible noise levels are complete silence and human
chatter noise. As the researcher believes that light and noise
levels might have different effects on men and women, they split
their sample into 40 men and 40 women, and will study each group
separately. (a) What are the factors in this experiment? (b) What
are the possible treatments in this experiment? (c) What type of
experimental design is the researcher using? Assuming all possible
treatments are part of the experiment, outline a diagram of the
design below. (Be sure to specify where the randomization and
comparison are occurring in the experiment.) (d) The researcher
will assign students to treatments randomly. Assign labels and then
use Table B (part of which is provided below), beginning at line
102, to identify the first 5 women in the study who will be picked
for the first treatment group.