Education · Research Methodology
The formula for the calculation of the point-biserial correlation coefficient is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1rbis = Mp - Mqσ × (p × qy)
- 2rn = n × r'n1 + (n - 1)r'n
- 3ppbis = R - W(N + 1)(R + W)
- 4rpbis = Mp - Mqσ × √(p × q)✓
Correct answer
rpbis = Mp - Mqσ × √(p × q)
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