| 95% CI for Cohen's d | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measure 1 | Measure 2 | t | df | p | Cohen's d | SE Cohen's d | Lower | Upper | |||||||||||
| What is your own IQ | - | Guess the IQ of the person sitting next to you | 0.750 | 82 | .455 | 0.082 | 0.159 | -0.133 | 0.298 | ||||||||||
| Note. Student's t-test. | |||||||||||||||||||
| N | Mean | SD | SE | Coefficient of variation | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| What is your own IQ | 83 | 120.096 | 21.460 | 2.356 | 0.179 | ||||||
| Guess the IQ of the person sitting next to you | 83 | 117.602 | 20.317 | 2.230 | 0.173 | ||||||
| 95% CI for Cohen's d | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| t | df | p | Cohen's d | SE Cohen's d | Lower | Upper | |||||||||
| What is your own IQ | 0.041 | 82 | .967 | 0.004 | 0.110 | -0.211 | 0.220 | ||||||||
| Note. For the Student t-test, the alternative hypothesis specifies that the mean is different from 120. | |||||||||||||||
| Note. Student's t-test. | |||||||||||||||
| N | Mean | SD | SE | Coefficient of variation | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| What is your own IQ | 83 | 120.096 | 21.460 | 2.356 | 0.179 | ||||||