Equivalent groups typically are formed by.
A) selecting two or more samples randomly from the population
B) ensuring that the proportions of males and females are the same in each group
C) matching participants for extraneous characteristics
D) randomly assigning participants to groups
Correct Answer:
Verified
Q1: To decide that the independent variable is
Q2: Sampling error implies that.
A)mistakes always will be
Q4: Extraneous variables in an experiment can affect
Q5: The dilemma facing the experimenter is determining
Q6: A simulated treatment condition in an experiment
Q7: An independent variable must have at least
Q8: Equivalent groups are expected to.
A)be exactly the
Q9: A placebo control group in an experiment
Q10: If two groups are expected to differ
Q11: When two or more groups are used
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