ANOVA za ponovljena merenja SPSS Repeated Measures ANOVA
- Slides: 12
ANOVA za ponovljena merenja SPSS
Repeated Measures ANOVA: Data Entry Each level of a within subjects factor is entered as a separate variable. Fatigue (3, 6, 9, 12, 15 min)
Repeated Measures ANOVA
Name and Define the Within Subjects Factors Click Add to enter each within subjects factor.
Click Define to define both Within and Between Subjects Factors.
Defining Within & Between Subjects Factors Within Subjects Factors Between Subjects Factors (Gender)
Repeated Measures Options
SPSS Output General Linear Model
Repeated Measure ANOVA Assumptions: Sphericity? Since Sphericity is violated, we must use either the G-G or Mauchly’s Test of Sphericity indicated that sphericity was violated. H-F adjusted [ W(9) =27. 59, p =. 001 ANOVAs You don’t want this to be significant.
SPSS Output: Within Subjects Factors If Sphericity was okay then the statistics would be F(4, 36) = 18. 36, p =. 000, power = 1. 000 But since Sphericity was violated we use the adjusted values: F(1. 485, 13. 367) = 18. 36, p =. 000, power =. 995, effect size or partial η 2 =. 67 Which means are significantly different? What is the difference between this power (post hoc) and an a priori power analysis?
SPSS Output: Between Subjects Effects If we had a between subjects factor like Gender, the ANOVA results would be printed here.
SPSS Output: Effect Size & Confidence Intervals
