Question

Suppose that the calculated t value for a two-group experiment with 43 participants per group is...

  1. Suppose that the calculated t value for a two-group experiment with 43 participants per group is 4.0. What is the value of the point-biserial r? Please show all work, including the formula used.
  1. .16
  2. .19
  3. .4
  4. .44
Math   Statistics-And-Probability   
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Answer #1

Hi, I have studied lot about point biserial and according to me, options are wrong because answer is 0.53.

Please go through my work and you'll believe that I'm saying true. Hope you'll appreciate. Please LIKE.

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