Description Usage Arguments Value
View source: R/power_formulas.R
MDES for 4-Level Random Effects Block Random Assignment Designs
1 2 |
R2_1 |
Proportion of variance in level 1 outcome explained by level 1 covariates |
R2_2 |
Proportion of variance in level 2 outcome explained by level 2 covariates |
R2_3T |
Proportion of between block variance in impacts on outcome between Level-3 blocks explained by Level-3 covariates |
R2_4T |
Proportion of variance in impacts on outcomes between Level-4 blocks explained by Level-4 covariates |
P |
Proportion of the level 4 units randomized to the treatment |
g_4 |
Number of level 4 Covariates used |
n |
Mean # of level 1 units per level 2 unit |
J |
Mean # of level 2 units per level 3 unit |
K |
Number of level 3 units per level 4 unit |
L |
Number of level 4 units |
rho_4 |
proportion of variance in outcome that is between level 4 units |
rho_3 |
proportion of variance in outcome that is between level 3 units |
rho_2 |
proportion of variance in outcome that is between level 2 units |
omega_3 |
Level 3 treatment effect heterogeneity: variance in treatment effect across Level 3 units, standardized by the Level 3 outcome variation |
omega_4 |
Level 4 treatment effect heterogeneity: variance in treatment effect across Level 4 units, standardized by the Level 4 outcome variation |
alpha |
Probability of a type I error |
power |
Statistical power (1 - probability of type II error) |
tails |
One or two tailed test |
Minimum Detectable Effect Size
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