Research Article
The Pursuit of Happiness Measurement: A Psychometric Model Based on Psychophysiological Correlates
Table 2
A priori analysis to compute the required sample size in a repeated measures ANOVA.
| Input | Output |
| Effect size | 0.25 | Noncentrality parameter | 10.5 | α err prob | 0.05 | Critical | 3.168246 | Power ( err prob) | 0.8 | Numerator df | 2 | Number of groups | 1 | Denominator df | 54 | Number of measurements | 3 | Total sample size | 28 | Corr among rep measures | 0.5 | Actual power | 0.8124546 | Nonsphericity correction | 1 | | |
|
|