Results

Descriptive Statistics

Descriptive Statistics
Mischief
  No cloak Cloak
Valid 12 12
Missing 0 0
Mean 3.750 5.000
95% CI Mean Upper 4.965 6.049
95% CI Mean Lower 2.535 3.951
Std. Deviation 1.913 1.651
Minimum 0.000 2.000
Maximum 6.000 8.000

Boxplots

Mischief

Q-Q Plots

Mischief

No cloak
Cloak

Linear Regression

Model Summary - Mischief
Model R R² Adjusted R² RMSE
M₀ 0.000 0.000 0.000 1.861
M₁ 0.343 0.118 0.078 1.787
Note.  M₁ includes Cloak
ANOVA
Model   Sum of Squares df Mean Square F p
M₁ Regression 9.375 1 9.375 2.936 0.101
  Residual 70.250 22 3.193  
  Total 79.625 23  
Note.  M₁ includes Cloak
Note.  The intercept model is omitted, as no meaningful information can be shown.
Coefficients
Model   Unstandardized Standard Error Standardizedᵃ t p
M₀ (Intercept) 4.375 0.380 11.519 < .001
M₁ (Intercept) 3.750 0.516 7.270 < .001
  Cloak (Cloak) 1.250 0.730 1.713 0.101
ᵃ Standardized coefficients can only be computed for continuous predictors.

Independent Samples T-Test

Independent Samples T-Test
95% CI for Mean Difference 95% CI for Cohen's d
Test Statistic df p Mean Difference SE Difference Lower Upper Cohen's d SE Cohen's d Lower Upper
Mischief Student -1.713 22.000 0.101 -1.250 0.730 -2.763 0.263 -0.700 0.432 -1.518 0.134
  Welch -1.713 21.541 0.101 -1.250 0.730 -2.765 0.265 -0.700 0.432 -1.519 0.135

Assumption Checks

Q-Q Plots

Mischief

Descriptives

Group Descriptives
  Group N Mean SD SE Coefficient of variation
Mischief No cloak 12 3.750 1.913 0.552 0.510
  Cloak 12 5.000 1.651 0.477 0.330

Raincloud Plots

Mischief

Raincloud Plots

Raincloud Plots

Mischief