Paper 1 · Mathematical Reasoning and Aptitude
UGC NET June 2024 Re-Exam (28.08.2024) Shift-II
Which of the following is the most appropriate for measuring the strength and direction of association between two interval/ratio variables?
ASpearman's rho
BPearson's r ✓ Correct
CPhi
DEta
Correct answer: (B) Pearson's r — Pearson's r is the most appropriate, so that is the answer.
Explanation
★Pearson's r is the most appropriate, so that is the answer.
★Pearson's r measures linear association between two continuous variables.
★It applies to interval and ratio level data.
★Its value ranges from minus 1 to plus 1, giving strength and direction.
★Spearman's rho suits ranks, and Phi and Eta suit other data types.
★Hence Pearson's r is correct.
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