Results

Repeated Measures ANOVA

Within Subjects Effects
Cases Sum of Squares df Mean Square F p η²p
Problem 57589.655 ᵃ 6 ᵃ 9598.276 ᵃ 107.391 ᵃ < .001 ᵃ 0.531
Residuals 50945.060 570 89.377  
Task 531974.792 1 531974.792 4612.722 < .001 0.980
Residuals 10956.136 95 115.328  
Problem ✻ Task 55505.265 ᵃ 6 ᵃ 9250.877 ᵃ 110.262 ᵃ < .001 ᵃ 0.537
Residuals 47822.307 570 83.899  
Note.  Type III Sum of Squares
ᵃ Mauchly's test of sphericity indicates that the assumption of sphericity is violated (p < .05).
Between Subjects Effects
Cases Sum of Squares df Mean Square F p
Residuals 20132.654 95 211.923  
Note.  Type III Sum of Squares

One Sample T-Test

One Sample T-Test
  t df p Cohen's d
NSx2.overall.acc 24.615 95 < .001 2.512
NSx3.overall.acc 5.695 95 < .001 0.581
NSx4.overall.acc 2.652 95 0.009 0.271
NSx5.overall.acc -1.296 95 0.198 -0.132
NSx6.overall.acc 0.149 95 0.882 0.015
NSx7.overall.acc -0.930 95 0.355 -0.095
NSx8.overall.acc 0.925 95 0.357 0.094
Note.  For the Student t-test, effect size is given by Cohen's d .
Note.  For the Student t-test, the alternative hypothesis specifies that the mean is different from 50.
Note.  Student's t-test.

Paired Samples T-Test

Paired Samples T-Test
Measure 1   Measure 2 t df p Cohen's d
NSx2.overall.acc - NSx3.overall.acc 14.158 95 < .001 1.445
NSx2.overall.acc - NSx4.overall.acc 20.161 95 < .001 2.058
NSx3.overall.acc - NSx4.overall.acc 4.346 95 < .001 0.444
Note.  Student's t-test.