[Answer] 39) Which of the following concerns internal validity?A) The extent to which the change in the dependent variable was actually due to the independent variableB) The measurement of extraneous variables that is internal to the experimental setting itselfC) The extent that the observed relationship between the independent variable and the dependent variable is generalizable to the real worldD) The representativeness of the sample test units

Answer: A
39) Which of the following concerns internal validity?A) The extent to which the change in the dependent variable was actually due to the independent variableB) The measurement of extraneous variables that is internal to the…

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