Results

ANOVA

The output shows that the main effect of `gender_identity` is significant, *F*(1, 36) = 7.292, *p* = 0.011, as is the main effect of film, *F*(1, 36) = 141.87, *p* < 0.001 and the interaction, *F*(1, 36) = 4.64, *p* = 0.038. Given that the interaction is significant we should focus on this effect (because it makes the main effects hard to interpret by themselves). To dissect the interaction effect we can look at the conditional post hoc tests for the interaction effect, which shows gender differences, for each of the two films separately. Psychological arousal is statistically comparable for those identifying as men and women during the documentary about notebooks (it is low for both genders), *t*(36) = 0.39, ptukey = 0.702, d = 0.172. However, for the notebook those identifying as men experienced significantly greater psychological arousal than those identifying as women, *t*(36) = 11.78, ptukey = 0.002, d = 1.535. These results are visualized in the raincloud and descriptives plots.

ANOVA - Arousal
95% CI for ω²ₚ
Cases Sum of Squares df Mean Square F p ω²ₚ Lower Upper
Gender 297.025 1 297.025 7.285 0.011 0.136 9.524×10-4 0.350
Film 5784.025 1 5784.025 141.872 < .001 0.779 0.639 0.853
Gender ✻ Film 189.225 1 189.225 4.641 0.038 0.083 0.000 0.287
Residuals 1467.700 36 40.769  
Note.  Type III Sum of Squares

Descriptives

Descriptives plots

Post Hoc Tests

Standard (HSD)

Post Hoc Comparisons - Gender ✻ Film - Conditional on Gender
95% CI for Mean Difference 95% CI for Cohen's d
Gender Mean Difference Lower Upper SE df t Cohen's d Lower Upper ptukey
Man The notebook A documentary about notebooks 28.400 22.609 34.191 2.856 36 9.946 4.448 2.524 6.372 < .001
Woman   A documentary about notebooks 19.700 13.909 25.491 2.856 36 6.899 3.085 1.476 4.695 < .001
Post Hoc Comparisons - Gender ✻ Film - Conditional on Film
95% CI for Mean Difference 95% CI for Cohen's d
Film Mean Difference Lower Upper SE df t Cohen's d Lower Upper ptukey
The notebook Man Woman 9.800 4.009 15.591 2.856 36 3.432 1.535 0.188 2.882 0.002
A documentary about notebooks   Woman 1.100 -4.691 6.891 2.856 36 0.385 0.172 -1.078 1.422 0.702


Raincloud Plots

Raincloud Plots

Arousal