Longitudinal designs involve studies of one group at one time and usually refer to a representative sample of this group.
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Q24: The two-group ex post facto design,is an
Q25: The one-group before-after design,or one-group pretest-posttest design,eliminates
Q26: Which of the following is a means
Q27: Which of the following refers to an
Q28: Quasi-experimental designs do not use random assignment
Q30: Randomization deals with assuming equivalence by selecting
Q31: Equivalence serves as a prototype for all
Q32: The classical experimental design,which serves as a
Q33: Which of the following refers to a
Q34: Experimental designs sometimes called true experimental designs)are
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