Altruism/Non-Altruism Questionnaire – Short Version: The Revision of the Method Based on Bifactor Analysis

Abstract

The Altruism/Non-altruism (A–N) Questionnaire is a tool for measuring altruism, understood as the readiness to act selflessly for the benefit of other people without expecting an external reward. The article presents a review of past research that provides empirical evidence for the tool’s validity and the results of two studies aimed at abridging the questionnaire. Study 1 (N = 641) included the shortening of the instrument and a preliminary assessment of the psychometric properties of the abbreviated version. In Study 2 (N = 388), the questionnaire was cross-validated, and its reliability and validity were assessed. The short version of the A–N Questionnaire proved to be a satisfactorily reliable and valid instrument for measuring altruism.

Keywords

• altruism
• measurement
• altruism/non-altruism questionnaire
• prosocial behaviour
• bifactor analysis