What is typically done to reduce the possibility of selection biases?
A) Choose the sample from a population that is believed to be very similar
B) Control for the similarity of experimental participants
C) Use random assignment to place participants into different experimental conditions
D) Add a control group to the experiment
Correct Answer:
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Q1: External validity is mostly concerned with:
A) The
Q2: Statistical regression, as a threat to internal
Q3: Reactivity may pose a threat to the
Q4: Reducing possible threats to internal validity will
Q5: An example of the instrumentation threat to
Q7: Why is it important to use a
Q8: The timing of measurement e.g., pretest, posttest,
Q9: Internal validity is best defined as:
A) The
Q10: Generalizing research findings from animals to human
Q11: What is a typical approach used by
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