Technical b r Report - International Military Testing Association

All quizzes were given in well lighted classrooms under
comfortable conditions.
SUBJECTS and DESIGN Five hundred and sixty eight Coast Guard rrcruits
who entered the service between 15 April and 15 August 1373 served
as subjects in this experiment. They were assigned to companies,
apprcxiaately fifty men each, as they reported for duty. The varying
numbers in each co,:gany caused the number of subjects in each treatment
group to fluctuate. As each company of men began training they were
assigned a treatment category, 1, 2, 3, or 4. This continued unti 1 four
companies had gone through treatment 1, four companies had treatment
2, five companies had treatment 3, and four companies had treatment 4.
The total number of subjects in each group was as follows.
Treatment #1 - IL5
Treatment $2 - 134
Treatment k’3 - 170
Treatment 14 - llg
568 = N
Subjects were therefore assigned as randomly as possible to treatment
groups . Four instructors took turns administering the three treatments
to help control for the effect of any particular instructor personality.
PROCEDURE Prior to this time no quizzes were given to recruits other
than the third and sixth w&k progress tests which consist of 50
I
mu!tiple choice questions on material covered in lecture, course material
and text. Quizzes were introduced at the end of weeks one and two prior
to the first progress test. Companies received their assigned feedback
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