Cohen's d in SPSS

Discussion in 'Psychology [Psy.D. / Ph.D.]' started by neuropsyance, 10.04.10.

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1. neuropsyance 2+ Year Member

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Anyone know how to compute it? I haven't used SPSS since freshman year of undergrad and now they're making me (literally forcing me) to use it again. I'm trying to compute Cohen's d, the last thing I need for this assignment. I'm going to bed for the night, and expect some guidance when I wake up SDN!

neuropsyance

3. JockNerd 5+ Year Member

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SPSS doesn't give it to you. The formula is simple and is obtainable from any google search for "cohen's d." There are half a dozen online calculators for it.

4. neuropsyance 2+ Year Member

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Our instructor's assignment said to "use" SPSS to compute Cohen's d. I knew the calculation, but couldn't find it in SPSS (for now obvious reasons). She must have just made a typo haha.

5. LGPsychology 2+ Year Member

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Straightforward after that.

6. krisrox 5+ Year Member

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+1 on G Power.

It is amazing.

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Hi, perhaps your tutor wanted you to just use a formula to compute cohens d from some other information you have - do you have r or z for example, because if you do then d=(2r)/sqrt(1-r^2) and d=(2z)/sqrt(N-z)...spss doesn't necessarily have to have an option to calculate d for you....you can just use the transform function.

8. JockNerd 5+ Year Member

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You use the SPSS output to calculate it, but spss does not provide d. Use an online calculator.

9. Psychadelic2012PhD Student 2+ Year Member

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This. Use the syntax editor to compute it yourself.

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try this