. 1. Experimental studies are based on which of the following principle ? Manipulation of variables Theoretical Parameters . Replication of Research * Survey of literature
2. Which of the following statement is true about ex post facto research? The researcher can use the principle of randomization " The researcher can manipulate the independent It is easier to infer the relationship between The researcher predicts the possible causes behind an variable. dependent and independent variable. effect that has already occurred.
3. An experimenter tests the hypothesis that physical exercise helps people's mood (makes them happier). Subjects in experimental group participate on Monday and Tuesday and those in the control group on Friday and Saturday. What is the extraneous variable? Day of the week The exercise .The hypothesis The mood
4. The major advantage of experimental methods over correlation method is that . Permits the study of people in group Is general less artificial . Permits one to make causal conclusioin . Allows for prediction
5. Which of the following method is best suited for the study of opinions, attitudes and social facts Experimental Methods . Survey Methods . Quasi Experimental Methods . Observation Methods
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