Large-Scale Psychometric Analysis of the Brazilian Ageism Scale for Dental Students (ASDS-Braz)-A Multicenter Study

Mariana Sarmet Smiderle Mendes; Patrick Barlow; Maria Aparecida Neves Jardini; Ana Gabriela Logatto de Oliveira; Alexandre Fávero Bulgarelli; Luísa Helena do Nascimento Tôrres; Magáli Beck Guimarães; Luciana de Rezende Pinto; Eunice Ellen Gontijo de Menezes; Túlio Eduardo Nogueira; Leonardo Marchini

doi:10.1111/scd.70113

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Large-Scale Psychometric Analysis of the Brazilian Ageism Scale for Dental Students (ASDS-Braz)-A Multicenter Study

Journal article

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Large-Scale Psychometric Analysis of the Brazilian Ageism Scale for Dental Students (ASDS-Braz)-A Multicenter Study

Mariana Sarmet Smiderle Mendes, Patrick Barlow, Maria Aparecida Neves Jardini, Ana Gabriela Logatto de Oliveira, Alexandre Fávero Bulgarelli, Luísa Helena do Nascimento Tôrres, Magáli Beck Guimarães, Luciana de Rezende Pinto, Eunice Ellen Gontijo de Menezes, Túlio Eduardo Nogueira, …

Special care in dentistry, Vol.45(6), e70113

11/2025

DOI: 10.1111/scd.70113

PMID: 41214858

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https://doi.org/10.1111/scd.70113View

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Abstract

Purpose To reassess the psychometric properties of ASDS-Braz in a large, multicenter sample of Brazilian dental students, aiming to evaluate its factorial structure's robustness and applicability across diverse contexts. Methods Data were collected around 2 years from multiple Brazilian centers, including responses to the ASDS-Braz and demographic variables, and additional questions regarding participants’ experience living with or caring for older adults, as well as their clinical course experience. Data were consolidated for large-scale validation through secondary analysis. Exploratory factor analysis (EFA) was conducted, with factorability assessed using the Kaiser–Meyer–Olkin (KMO) measure and Bartlett's test. Principal Axis Factoring with Varimax rotation was applied, and internal consistency was evaluated using Cronbach's alpha. Analyses were performed using SPSS v.28, with p < 0.05 considered statistically significant. Results The sample included 1539 dental students from 11 schools, predominantly white (66.3%) and female (72.4%), with most having clinical experience (87.4%). The ASDS-Braz was divided into four factors, with Factors 1 and 2 showing moderate reliability (α = 0.71) given the size of the study. However, other factors and the 10-item scale did not meet the acceptability threshold. Conclusion The ASDS-Braz did not exhibit satisfactory psychometric properties in a large, multicenter sample. It requires restructuring, refinement, and revalidation to ensure its suitability for national research and clinical application in Brazil.

Brazil

Adult

Ageism - psychology

Factor Analysis, Statistical

Female

Humans

Male

Psychometrics

Reproducibility of Results

Students, Dental - psychology

Surveys and Questionnaires

Young Adult

Details

Title: Subtitle: Large-Scale Psychometric Analysis of the Brazilian Ageism Scale for Dental Students (ASDS-Braz)-A Multicenter Study
Creators: Mariana Sarmet Smiderle Mendes - Department of Aerospace Science and Technology
Patrick Barlow - University of Iowa
Maria Aparecida Neves Jardini - Department of Aerospace Science and Technology
Ana Gabriela Logatto de Oliveira - Department of Aerospace Science and Technology
Alexandre Fávero Bulgarelli - Universidade Federal do Rio Grande do Sul
Luísa Helena do Nascimento Tôrres - Universidade Federal do Rio Grande do Sul
Magáli Beck Guimarães - Universidade Federal de Santa Maria
Luciana de Rezende Pinto - Universidade Federal de Pelotas
Eunice Ellen Gontijo de Menezes - Universidade Federal de Goiás
Túlio Eduardo Nogueira - Universidade Federal de Goiás
Leonardo Marchini - University of Iowa
Resource Type: Journal article
Publication Details: Special care in dentistry, Vol.45(6), e70113
DOI: 10.1111/scd.70113
PMID: 41214858
NLM abbreviation: Spec Care Dentist
ISSN: 0275-1879
eISSN: 1754-4505
Publisher: Wiley; HOBOKEN
Language: English
Date published: 11/2025
Academic Unit: Preventive and Community Dentistry; ICTS; Center for Social Science Innovation; Office of Consultation and Research in Medical Education; General Internal Medicine; Internal Medicine
Record Identifier: 9985026350502771

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