Statistical Power

Definition

The probability (conventionally targeted at 0.80) that a test detects an effect that genuinely exists — driven by sample size, effect size and significance level.

Where it's used

A priori power analysis to justify sample size
Explaining non-significant results in small samples

Software used

G*PowerRSPSS

Related concepts

Sample Size Effect Size Type I & Type II Errors ANOVA Average Variance Extracted (AVE)Bootstrapping

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Where it's used

Software used

Related concepts

Guides that use this concept

Sampling Methods in Research: Types, Selection & Justification

How to Choose the Right Statistical Test: A Decision Guide

Qualitative vs Quantitative vs Mixed Methods: Which Fits Your Study?

Reliability and Validity Explained (With Examples)

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