Related Experiment Video
Updated: Jun 21, 2025

Multimedia Battery for Assessment of Cognitive and Basic Skills in Mathematics BM-PROMA
Published on: August 28, 2021
European Portuguese Version of the Game Addiction Scale-7: Factor Structure and Psychometric Properties
Ilda Massano-Cardoso1,2,3, Filipa Nogueira1, Sofia Carvalho Figueiredo1
1Instituto Superior Miguel Torga, Coimbra, Portugal.
Introduction:
Game addiction (GA) can be described as a compulsive and excessive usage of computers or video games that causes emotional and or social problems. The current study tested the factor structure and psychometric properties of the European Portuguese Game Addiction Scale (GAS-7-PT) short version.
Methods:
The sample encompassed 375 participants, 233 women (62.1%) and 142 men (37.9%), with a mean age of 21.71 (standard deviation = 5.82) years old. Participants completed a set of self-report measures online: the GAS-7-PT, the Scale of Involvement in Video Games and the Patient Health Questionnaire-4.
Results:
Confirmatory factor analyses confirmed a biological sex invariant single-factor structure with a very good fit to the data. The GAS-7-PT showed good reliability and test-retest reliability. Correlations with related and unrelated measures suggested convergent validity, and partial correlation results pointed to incremental validity. Men showed significantly higher scores than women.
Conclusion:
The GAS-7-PT is a self-report instrument with suitable psychometric properties for clinical and research contexts. The availability of a European Portuguese version confirms the GAS-7 robust consistency and allows further cross-cultural clinical research.
More Related Videos
06:04Functional Near-Infrared Spectroscopy Hyperscanning Study in Psychological Counseling
Published on: January 17, 2025
09:00Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
Published on: August 16, 2024
Related Concept Videos
Self-Report Tests of Personality
Reliability and Validity
Measures of Intelligence
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this;...
Five-Factor Theory of Personality
Openness reflects creativity, curiosity, and openness to new experiences. Individuals scoring high in openness are imaginative, have a wide range of interests, and are independent...
Cattell's 16 Personality Factors
In contrast, source traits are the...
Personality Theory by Eysenck and Eysenck
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...