Provide an appropriate response.
-A district administrator wants to determine the effect of truancy on academic achievement. In an effort to 'blind'
The experiment, she asks the dean at one high school to randomly select the records of 50 truant students and
Asks the dean at another high school to randomly select the records of 50 nontruant students. Identify any
Problems that are likely to cause confounding.
A)the use of two different deans as selectors
B)the use of cases from two different schools
C)analysis by the district administrator
D)nothing (this is a well-designed retrospective study)

Question

Quizplus · Accepted Answer

Using cases from two different schools can introduce confounding variables, as differences in school environments, teaching quality, or student demographics could affect academic achievement independently of truancy.

Provide an Appropriate Response