Sign Test Concept and Example

Performing a Sign Test in Nonparametric Statistics, Example 183

Performing a Sign Test the Large Sample Case, Example 185

SPSS - One-sample Sign test

Sign Test for Two Related Samples using SPSS

Sign Test as a Non-Parametric Alternative to a One-Sample T Test in SPSS

A-Level Psychology(AQA): Research Methods - The Sign Test

11.1 Nonparametric Statistics: The Sign Test