| Descriptives | |||||
|---|---|---|---|---|---|
| Groupe | Deviation | ||||
| N | 0 | 15 | |||
| 2 | 15 | ||||
| Mean | 0 | 47.9 | |||
| 2 | 70.8 | ||||
| Std. error mean | 0 | 1.75 | |||
| 2 | 2.37 | ||||
| Standard deviation | 0 | 6.78 | |||
| 2 | 9.18 | ||||
| Independent Samples T-Test | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| statistic | df | p | Mean difference | SE difference | Cohen's d | ||||||||||
| Deviation | Student's t | -7.78 | 28.0 | < .001 | -22.9 | 2.95 | -2.84 | ||||||||
| Test of Equality of Variances (Levene's) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| F | df | df2 | p | ||||||
| Deviation | 2.56 | 1 | 28 | 0.121 | |||||
| Note. A low p-value suggests a violation of the assumption of equal variances | |||||||||
| [3] | |||||||||
[1] The jamovi project (2019). jamovi. (Version 1.0) [Computer Software]. Retrieved from https://www.jamovi.org.
[2] R Core Team (2018). R: A Language and envionment for statistical computing. [Computer software]. Retrieved from https://cran.r-project.org/.
[3] Fox, J., & Weisberg, S. (2018). car: Companion to Applied Regression. [R package]. Retrieved from https://cran.r-project.org/package=car.