The process in which every member of a population has equal chances of selection is called
Correct answer is: D. Randomization
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If the results are due to only manipulated independent variable, it is called
Correct answer is: A. Internal Validity
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Physical or mental changes that may occur within the subjects over a period of time is called
Correct answer is: C. Maturation
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If the results of experiment are generalizable to situations outside the experimental setting, it is called
Correct answer is: B. External Validity
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If the subjects drop out and their absence has a significant effect on result of the study, it is called
Correct answer is: D. Mortality
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When the subjects are selected on the basis of their extreme scores, it is called
Correct answer is: A. Statistical Regression
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Unreliability or lack of consistency in measuring instruments is called
Correct answer is: B. Instrumentation
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Which type of experimental design provides either no control group or no way of questioning the groups that are used?
Correct answer is: A. Pre-Experimental
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Which type of experimental design uses ready made groups and provides less satisfactory degree of control?
Correct answer is: C. Quasi Experimental
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Which type of experimental design is used only when randomization is not feasible?
Correct answer is: C. Quasi Experimental
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