The correct formula for effect size using Cohen's d for a single-sample t test is:
A) (M - $\mu $)/s + $\sigma $.
B) (M - $\mu $)/s.
C) (X - $\mu $)/s.
D) ($\sigma $ - $\mu $)/s.

Question

The correct formula for effect size using Cohen's d for a single-sample t test is:
A) (M - $\mu  $)/s + $\sigma $.
B) (M - $\mu  $)/s.
C) (X - $\mu  $)/s.
D) ($\sigma $ - $\mu  $)/s.

Quizplus · Accepted Answer

The correct formula for effect size using Cohen's d for a single-sample t test is (M - μ) / s, where M is the sample mean, μ is the population mean, and s is the sample standard deviation. The answer choice B correctly represents this formula. The other answer choices have errors in the formula or include unnecessary variables.

The Correct Formula for Effect Size Using Cohen's D for a Single-Sample