Sampling error implies that.
A) mistakes always will be made in selecting participants for an experiment
B) the means for samples selected from the same population will differ by some chance amount
C) the means for samples selected from the same population will always be equal
D) we can decide if an independent variable has an effect by visually inspecting the means of the different groups in an experiment
Correct Answer:
Verified
Q1: To decide that the independent variable is
Q3: Equivalent groups typically are formed by.
A)selecting two
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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