John Adams, a history teacher, wanted to determine whether short answer or multiple choice were more effective in testing his 86 students recall. The students in his first period were given either the short-answer (S) or the multiple choice (M) treatment, via coin flip, into two equally-sized groups. After that, the students may begin their tests. Both treatments contain 20 similar recall questions. This experiment is NOT ideal because John Adams

DETERMINING EXPERIMENTAL AND SAMPLE DESIGNS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

John Adams, a history teacher, wanted to determine whether short answer or multiple choice were more effective in testing his 86 students’ recall. The students in his first period were given either the short-answer (S) or the multiple choice (M) treatment, via coin flip, into two equally-sized groups. After that, the students may begin their tests. Both treatments contain 20 similar recall questions. This experiment is NOT ideal because John Adams

A	utilized a completely randomized design as opposed to a matched-pairs design.
B	did not account for students’ grade on the previous assignment.
C	did not control for the time given to each treatment group.
D	did not randomly select the students from the population of interest.
E	created a study that is not generalizable for his 86 students.

Explanation:

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RESEARCH METHODOLOGY

REPORTING AND THESIS WRITING

DETERMINING EXPERIMENTAL AND SAMPLE DESIGNS