Description Usage Arguments Value
View source: R/power_formulas.R
MDES for 3-Level Random Effects Blocked Individual Random Assignment Design
1 2 |
R2_1 |
Proportion of variance in level 1 outcome explained by level 1 covariates |
R2_2T |
Proportion of between block variance in treatment effect explained by Level 2 covariates |
R2_3T |
Proportion of between block variance in treatment effect explained by Level 3 covariates |
P |
Proportion of level 1 units randomized to the treatment |
g_3 |
Number of level 3 covariates |
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 |
rho_3 |
proportion of variance in outcome between level 3 units |
rho_2 |
proportion of variance in outcome between level 2 units |
omega_2 |
Level 2 treatment effect heterogeneity: variance in treatment effect across Level 2 units, standardized by the Level-2 outcome variation |
omega_3 |
Level 3 treatment effect heterogeneity: variance in treatment effect across Level 3 units, standardized by the Level-3 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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