Related Experiment Video
Updated: Nov 29, 2025

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
ADOLESCENT STUDENTS' ATTITUDES TOWARDS SEXUALITY: THE CONSTRUCTION AND VALIDATION OF A SCALE
Teresa Madalena Kraus Brincheiro Hüttel Barros1, Sónia Isabel Horta Salvo Moreira de Almeida Ramalho1, Clementina Maria Gomes de Oliveira Gordo2
1Center for Innovative Care and Health Technology (ciTechCare), Leiria, Portugal.
Objective:
To construct a scale of adolescents' attitudes towards sexuality and to determine their psychometric characteristics.
Methods:
Methodological study conducted with 394 students from the 8th to 12th grades of a school in central Portugal. They answered a questionnaire consisting of the Adolescent Students' Attitude Scale for Sexuality (E3AS) and socio-demographic and academic data. The project received a favorable opinion from the National Data Protection Commission (authorization No. 10421/2017). Construct validity analysis was performed through exploratory factor analysis and internal consistency was performed through Cronbach's alpha. A maximum error probability of 5% was considered.
Results:
The mean age of the sample was 14.9±1.4 years, with 53.3% being female. The instrument consisted of 34 items distributed into five factors: F1. Family planning and sex education (α=0.826); F2. First sexual relationship (α=0.819); F3. Violation of sexual rights and who to turn to in the event of unplanned pregnancies (α=0.695); F4. Gender expression and identity (α=0.542), and F5. Unplanned pregnancy and parenting (α= 0.761), with a total alpha value of 0.766, accounting for 45.3% of total variance.
Conclusions:
The psychometric adequacy of the E3AS for the Portuguese population allows us to affirm that it is a valid and reliable instrument that can be used in future studies to assess the attitudes of adolescent students towards sexuality.
More Related Videos
Related Concept Videos
Self-Evaluation: Self-Enhancement and Self-Verification
Erikson's Theory on Socioemotional Development during Adolescence
Reliability and Validity
Ethnic Identity within a Larger Culture
Cognitive Development During Adolescence
Attitudes

