lmm1w1b: Compute power for a One Factor Within Subjects and One Factor...

In pwr2ppl: Power Analyses for Common Designs (Power to the People)

Compute power for a One Factor Within Subjects and One Factor Between LMM with up to two by four levels (within). Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Description

Compute power for a One Factor Within Subjects and One Factor Between LMM with up to two by four levels (within). Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Usage

lmm1w1b(
  m1.1,
  m2.1,
  m3.1 = NA,
  m4.1 = NA,
  m1.2,
  m2.2,
  m3.2 = NA,
  m4.2 = NA,
  s1.1 = NA,
  s2.1 = NA,
  s3.1 = NA,
  s4.1 = NA,
  s1.2 = NA,
  s2.2 = NA,
  s3.2 = NA,
  s4.2 = NA,
  r1.2_1 = NULL,
  r1.3_1 = NULL,
  r1.4_1 = NULL,
  r2.3_1 = NULL,
  r2.4_1 = NULL,
  r3.4_1 = NULL,
  r1.2_2 = NULL,
  r1.3_2 = NULL,
  r1.4_2 = NULL,
  r2.3_2 = NULL,
  r2.4_2 = NULL,
  r3.4_2 = NULL,
  r = NULL,
  s = NULL,
  n,
  alpha = 0.05
)

Arguments

m1.1	Mean of first level Within Factor, 1st level Between Factor
m2.1	Mean of second level Within Factor, 1st level Between Factor
m3.1	Mean of third level Within Factor, 1st level Between Factor
m4.1	Mean of fourth level Within Factor, 1st level Between Factor
m1.2	Mean of first level Within Factor, 2nd level Between Factor
m2.2	Mean of second level Within Factor, 2nd level Between Factor
m3.2	Mean of third level Within Factor, 2nd level Between Factor
m4.2	Mean of fourth level Within Factor, 2nd level Between Factor
s1.1	Standard deviation of first level Within Factor, 1st level Between Factor
s2.1	Standard deviation of second level Within Factor, 1st level Between Factor
s3.1	Standard deviation of third level Within Factor, 1st level Between Factor
s4.1	Standard deviation of forth level Within Factor, 1st level Between Factor
s1.2	Standard deviation of first level Within Factor, 2nd level Between Factor
s2.2	Standard deviation of second level Within Factor, 2nd level Between Factor
s3.2	Standard deviation of third level Within Factor, 2nd level Between Factor
s4.2	Standard deviation of forth level Within Factor, 2nd level Between Factor
r1.2_1	correlation Within Factor Level 1 and Within Factor, Level 2, 1st level Between
r1.3_1	correlation Within Factor Level 1 and Within Factor, Level 3, 1st level Between
r1.4_1	correlation Within Factor Level 1 and Within Factor, Level 4, 1st level Between
r2.3_1	correlation Within Factor Level 1 and Within Factor, Level 3, 1st level Between
r2.4_1	correlation Within Factor Level 1 and Within Factor, Level 4, 1st level Between
r3.4_1	correlation Within Factor Level 1 and Within Factor, Level 4, 1st level Between
r1.2_2	correlation Within Factor Level 1 and Within Factor, Level 2, 2nd level Between
r1.3_2	correlation Within Factor Level 1 and Within Factor, Level 3, 2nd level Between
r1.4_2	correlation Within Factor Level 1 and Within Factor, Level 4, 2nd level Between
r2.3_2	correlation Within Factor Level 1 and Within Factor, Level 3, 2nd level Between
r2.4_2	correlation Within Factor Level 1 and Within Factor, Level 4, 2nd level Between
r3.4_2	correlation Within Factor Level 1 and Within Factor, Level 4, 2nd level Between
r	sets same correlations between DVs on all factor levels (seriously, just use this)
s	sets same standard deviation for factor levels (see comment above)
n	n for each between group level
alpha	Type I error (default is .05)

Value

Power for the One Factor Within Subjects and One Factor Between LMM

Examples

lmm1w1b(m1.1 = -.25, m2.1=0, m3.1=0.10, m4.1=.15,
m1.2=-.25,m2.2=-.25,m3.2=-.25, m4.2=-.25,
s1.1 = .4, s2.1=.5, s3.1=0.6, s4.1=.7,
s1.2=.4,s2.2=.5,s3.2=.6, s4.2=.7,n = 50,
r1.2_1=.5,r1.3_1=.3,r1.4_1=.15,r2.3_1=.5,r2.4_1=.3,r3.4_1=.5,
r1.2_2=.5,r1.3_2=.3,r1.4_2=.15, r2.3_2=.5,r2.4_2=.3,r3.4_2=.5)
lmm1w1b(m1.1 = -.25, m2.1=0, m3.1=0.10, m4.1=.15,
m1.2=-.25,m2.2=-.25,m3.2=-.25, m4.2=-.25, s=.4, r = .5, n=100)

pwr2ppl documentation built on Sept. 6, 2022, 5:06 p.m.