Correct Answer - Option 1 : P-2; Q-1; R-3; S-5
P) Survey
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2) Information-rich sample
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Q) Experiment
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1) Manipulation of variable/s
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R) Case study
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3) To describe the population
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S) Document analysis
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5) Content analysis
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Hence, the correct matching is P-2; Q-1; R-3; S-5.