Results

ANOVA



There was a significant main effect of songwriter, indicating that when we ignore the type of song Andy's songs elicited significantly more screams than those written by Malcolm, *F*(1, 64) = 9.94, *p* = 0.002,  = 0.116. There was also a significant main effect of the type of song indicating that, when we ignore the songwriter, symphonies elicited significantly more screams of agony than songs about flies, *F*(1, 64) = 20.87, *p* < 0.001,  = 0.226.


The interaction was also significant, *F*(1, 64) = 5.07, *p* = 0.028,  = 0.058. The raincloud plot and conditional post hoc tests suggested that although reactions to Malcolm's and Andy's songs were statistically comparable for the fly songs, *t*(64) = -0.637, ptukey = 0.526, d = -0.218, Andy's symphony elicited significantly more screams of torment than Malcolm's, *t*(64) = -3.822, ptukey < 0.001, d = -1.311. Therefore, although the main effect of songwriter suggests that Malcolm was a better songwriter than Andy, the interaction tells us that this effect is driven by Andy being poor at writing symphonies.


ANOVA - screams
95% CI for ω²ₚ
Cases Sum of Squares df Mean Square F p ω²ₚ Lower Upper
song_type 74.132 1 74.132 20.874 < .001 0.226 0.071 0.391
songwriter 35.309 1 35.309 9.942 0.002 0.116 0.012 0.274
song_type ✻ songwriter 18.015 1 18.015 5.072 0.028 0.057 0.000 0.195
Residuals 227.294 64 3.551  
Note.  Type III Sum of Squares

Descriptives

Descriptives plots

Simple Main Effects

Simple Main Effects - songwriter
Level of song_type Sum of Squares df Mean Square F p
Symphony 51.882 1 51.882 14.609 < .001
Fly Song 1.441 1 1.441 0.406 0.526

Post Hoc Tests

Standard (HSD)

Post Hoc Comparisons - song_type ✻ songwriter - Conditional on song_type
95% CI for Mean Difference 95% CI for Cohen's d
song_type Mean Difference Lower Upper SE df t Cohen's d Lower Upper ptukey
Symphony Malcolm Andy -2.471 -3.762 -1.179 0.646 64 -3.822 -1.311 -2.297 -0.325 < .001
Fly Song   Andy -0.412 -1.703 0.880 0.646 64 -0.637 -0.218 -1.154 0.717 0.526
Post Hoc Comparisons - song_type ✻ songwriter - Conditional on songwriter
95% CI for Mean Difference 95% CI for Cohen's d
songwriter Mean Difference Lower Upper SE df t Cohen's d Lower Upper ptukey
Malcolm Symphony Fly Song 1.059 -0.232 2.350 0.646 64 1.638 0.562 -0.382 1.505 0.106
Andy   Fly Song 3.118 1.826 4.409 0.646 64 4.823 1.654 0.639 2.670 < .001


Raincloud Plots

Raincloud Plots

screams