The EEG and behavioural results of Chemin et al. (2014) are used as parameters.
pwr.t.test(n = NULL,
d = 1.53,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 7.132031
d = 1.53
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Movement Condition x Session interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 learning type
nm = 2, # 2 sessions
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the movement condition
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 5.970644
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Group x Metre Frequency interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 groups
nm = 2, # 2 metre frequencies
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the metre frequency
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 5.970644
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Group x Metre Frequency interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 groups
nm = 2, # 2 metre frequencies
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the group
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "two.sample",
alternative = "greater")
Two-sample t test power calculation
n = 8.293783
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number in *each* group
# Group x Movement Condition interaction effect
wp.kanova(n = NULL,
ng = 4, # 2 groups x 2 movement conditions
ndf = 1,
f = 0.89,
alpha = 0.02,
power = 0.90)
Multiple way ANOVA analysis
n ndf ddf f ng alpha power
19.77242 1 15.77242 0.89 4 0.02 0.9
NOTE: Sample size is the total sample size
URL: http://psychstat.org/kanova
# Simple effect of the group
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "two.sample",
alternative = "greater")
Two-sample t test power calculation
n = 8.293783
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number in *each* group
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 5.970644
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Movement Condition x Session interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 learning type
nm = 2, # 2 sessions
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the movement condition
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 5.970644
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Group x Metre Frequency interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 groups
nm = 2, # 2 metre frequencies
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the metre frequency
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "paired",
alternative = "greater")
Paired t test power calculation
n = 5.970644
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number of *pairs*
# Group x Metre Frequency interaction effect
wp.rmanova(n = NULL,
ng = 2, # 2 groups
nm = 2, # 2 metre frequencies
f = 0.89,
alpha = 0.02,
power = 0.90,
nscor = 1, # non-sphericity correction coefficient
type = 2) # "0" for between-effect; "1" for within-effect; and "2" for interaction effect
Repeated-measures ANOVA analysis
n f ng nm nscor alpha power
19.4089 0.89 2 2 1 0.02 0.9
NOTE: Power analysis for interaction-effect test
URL: http://psychstat.org/rmanova
# Simple effect of the group
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "two.sample",
alternative = "greater")
Two-sample t test power calculation
n = 8.293783
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number in *each* group
# Group x Movement Condition interaction effect
wp.kanova(n = NULL,
ng = 4, # 2 groups x 2 movement conditions
ndf = 1,
f = 0.89,
alpha = 0.02,
power = 0.90)
Multiple way ANOVA analysis
n ndf ddf f ng alpha power
19.77242 1 15.77242 0.89 4 0.02 0.9
NOTE: Sample size is the total sample size
URL: http://psychstat.org/kanova
# Simple effect of the group
pwr.t.test(n = NULL,
d = 1.77,
power = 0.90,
sig.level = 0.02,
type = "two.sample",
alternative = "greater")
Two-sample t test power calculation
n = 8.293783
d = 1.77
sig.level = 0.02
power = 0.9
alternative = greater
NOTE: n is number in *each* group
The smallest effect size of interest (SESOI) is computed using the small-telescopes approach based on Chemin et al. (2014).
pwr.t.test(n = 14,
d = NULL,
power = 0.33,
sig.level = 0.02,
type = "paired",
alternative = "greater") # "greater" for t test SESOI; "two.sided" for TOST SESOI
Paired t test power calculation
n = 14
d = 0.4690511
sig.level = 0.02
power = 0.33
alternative = greater
NOTE: n is number of *pairs*