# Questions tagged [statistical-power]

Is a property of a hypothesis testing method: the probability of rejecting the null hypothesis given that it is false, i.e. the probability of not making a type II error. The power of a test depends on sample size, effect size, and the significance ($\alpha$) level of the test.

1,530 questions
Filter by
Sorted by
Tagged with
14 views

### semPower: Accounting for Clustered Standard Errors in SEM Power Analysis with Fixed Effects Model

I am planning to analyse clustered data with a structural equation model and as I am planning on submitting my project as a registered report, I am first trying to do an in-depth power analysis (it is ...
23 views

### Logistic Regression Power Analysis with Multiple Predictors

So I'm working on my dissertation and I'm trying to figure out a binary logistic regression power analysis to show how many participants I should collect. My proposed analysis is as follows and the ...
1 vote
62 views

### sample size calculation for generalized least squares regression

I want to calculate the sample size for a multiple linear regression with correlated residuals, specifically using generalized least squares. For OLS, it appears that there a various different rules ...
1 vote
29 views

### G*Power repeated measures ANOVA within-within interaction

Suppose that I have 4-by-6 factorial design where both factors are within-subject variables, and I want to perform a repeated-measures ANOVA on the data. Using GPower, I calculate the sample size ...
1 vote
22 views

### Is a power analysis appropriate when the predictor variable is bounded between 0 and 1?

I am doing a power analysis (PA) to find the minimum sample size to detect a difference between two groups (with acknowledgment of the theoretical problems involving using p-values, etc.). The mean ...
8 views

### High Type 1 Errors in Power Analysis by Simulation for Null Effect with Multilevel Ordinal Regression with Cumulative Link Model

I am doing a power analysis for an experiment where we will fit a cumulative link model for ordinal regression. But when I do the power analysis, my power for the null effect is between 20% and 30%. ...
12 views

### Statistical consequences of random sampling or longitudinal (i.e., repeated) sampling

I need to assess the effect of different treatments on a crop. I am using a completely randomized block design with 4 treatments and 4 replicates for each treatment. The variables I need to measure ...
94 views

1 vote
49 views

### Bootstrap hypothesis test and Power Analysis: should I build my Power Analysis on t-test or Bootstrap, if hp testing is done through Bootstrap?

I'm using the bootstrap percentile method to frequently do hypothesis testing (two-tailed test for independent sample where H0 marketing KPI of group A - marketing metric of group B = 0; H1 is ≠ 0) ...
32 views

### How to calculate power in Cochran's Q test

I want to know how to calculate power in Cochran’s Q test. I performed an experiment designed within-participants. Participants respond to one question in each three conditions. The number of ...