Random assignment controls for the effects of selection and statistical regression.
Correct Answer:
Verified
Q44: Pre-experimental designs are subject to various threats
Q45: "Selection" refers to systematic differences among subjects
Q46: Selection effects may occur whenever college students
Q47: Instrumentation is a threat to internal validity
Q48: Attrition effects pertain only to studies using
Q50: History is basically a problem of external
Q51: Maturation effects may occur when experimental conditions
Q52: Statistical regression may be a threat to
Q53: True experimental designs control for maturation and
Q54: A pretest is an essential feature of
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents