Which of the following contribute to error variance?
A) Treating individual participants differently
B) Differences in participants' personal characteristics
C) Measurement error
D) All of these answers are correct
Correct Answer:
Verified
Q29: What is an independent variable? A dependent
Q30: Contrast simple random assignment with matched random
Q31: A "perfect" experiment maximizes _ variance and
Q32: In the analogy comparing variance to the
Q33: Differential attrition decreases internal validity because
A)the independent
Q35: What are the three essential properties of
Q36: Biased assignment
A)increases error variance.
B)is a particular problem
Q37: Error variance must be minimized in an
Q38: Demand characteristics are
A)the experimenter's expectancies about what
Q39: In experimental research, researchers regard _ as
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