Answer to Question 1
ANS: A, E, F
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Correct The research question must be one that can be studied within a realistic time period.
The researcher must determine whether a sufficient number of eligible subjects will be available and willing to participate in the study.
Before embarking on a study, the researcher should itemize the expenses and project the total cost of the project.
Incorrect Effects of selection occur when the researcher cannot attain the ideal sample population. This limits generalizability (external validity), not the feasibility of the study.
Reactivity is the subjects' responses to being studied. It can be minimized by paying equal attention to the control group. It is not related to a study's feasibility.
Measurement effects occur when a pretest affects the posttest results within a study.
They are not related to a study's feasibility.
Answer to Question 2
ANS: A, C, D
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Correct Control requires valid, reliable instruments.
Trained research assistants help maintain standardized procedures and promote control.
Data collection processes that are standardized promote control.
Incorrect Subjects of all ages are not required for control.
Analysis of data by words or text is characteristic of qualitative designs.