If an experimental group's mean of 60 is a better outcome than the control group's mean of 55, and the standard

Question

Question: If an experimental group's mean of 60 is a better outcome than the control group's mean of 55, and the standard deviation is 10, then the d-index equals:

Options:

1.  .50
2.  5.0
3.  2.0
4.  .05

Answer 1

2.)  5.0

If an experimental group's mean of 60 is a better outcome than the control group's mean of 55, and the standard deviation is 10, then the d-index equals 5.0.