Statistical power calculator

Linear regression, ANOVA (F distribution)

Video Statistical Power Information Power Calcualtors Regression Sample Size
Regression or ANOVA.
significance level (0-1), maximum chance allowed rejecting H0 while H0 is correct (Type1 Error)
The sample size. For ANOVA it is the total sample size accumulated from all the groups.
The number of independent variables (X).
Leave empty if you know the effect type and the effect size value.
The expected effect size - f or R-squared or η-squared. more
The expected effect that the test should detect. Any change in Type or in Effect Size will change the value! You may overide this value.
Example digits=2: (0.001234 => 0.0012)
tails:
distribution:

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Information

Calculate the test power basted on the sample size and draw a power analysis chart.

Use this test for one of the following tests:
Simple Linear Regression
Multiple Linear Regression
One Way ANOVA

Distribution

distribution right tailed

R Code

The following R code should produce the same results