GATE 2021 XH5 – Question 41

Research Methods and Statistics · Statistics in Psychology: Central tendency and dispersion, normal probability curve, parametric and non-parametric tests, effect size and power analysis · 1 mark · Multiple choice

Which technique integrates statistical results from multiple independent studies addressing the same research question?

Meta-analysis
Correlational analysis
Regression analysis
Bootstrapping

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Show answer and explanation

Correct answer: (A) Meta-analysis

Explanation

Meta-analysis combines compatible study effect sizes, usually with weights reflecting precision, to estimate an overall effect and examine heterogeneity. That is A. Correlation and regression analyse relationships, while bootstrapping estimates sampling uncertainty by resampling and is not itself a synthesis of independent studies.

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