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GATE 2024 XH5 (Psychology) – Question 28

Research Methods and Statistics · Correlational Analysis: Product moment and rank order correlation, partial and multiple correlation, biserial, point biserial, tetrachoric and phi, regression, factor analysis · 1 mark · Multiple choice

Which among the following correlation coefficient values represents the strongest relationship between two variables?

  1. − 0.86
  2. + 0.68
  3. + 0.59
  4. − 0.05

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Correct answer: (A) − 0.86

Explanation

The strength of a correlation depends on its size, not its sign. $|-0.86|$ is the largest.