Background: Given the significant gap in tailored assessment tools, this research seeks to adapt the Self-concept (Form 5-AF5) questionnaire for young students with intellectual disabilities, employing an inclusive approach. Method: Twenty-three disability experts initially assessed questionnaire suitability, leading to revisions for clarity.…

Sexual and gender minoritized (SGM) adolescents negotiate their outness in various social contexts as they navigate a heteronormative system. For many SGM adolescents, outness is associated with peer victimization, while for others, it is associated with increased feelings of connectedness. To support SGM adolescents in their outness journey,…

Background: Modelling academic self-concept through second-order factors or bifactor structures is an important issue with substantive and practical implications; besides, the bifactor model has not been analysed with a Chinese sample and cross-cultural studies in the academic self-concept are scarce. Likewise, latent structure validity evidence…

The aim of the study was to explore same-sex and opposite-sex friendship functions among 12 to 13- and 16 to 17-year-old Hungarian adolescents (n = 304). To explore perceptions of friendship functions, the McGill Friendship Questionnaire (MFQ, 30 items, 6 factors: stimulating companionship, help, intimacy, reliable alliance, self-validation,…

This study aimed to introduce an ego-resiliency questionnaire for preadolescents (the ER-P) by restructuring the ER89 using the data of 1398 preadolescents from the Panel Study on Korean Children. The ER-P was proposed as a 10-item second-order instrument with two factors (Optimal Regulation and Openness to Life Experiences). The ER-P achieved…

The purpose of this study was to adapt the Self Description Questionnaire for Preschoolers into Turkish and to examine the self-concept of Turkish preschoolers based on sex and age. A total of 420 preschoolers participated in the study. The viability of the six-factor solution for the Turkish sample was examined using the first- and second-order…

Validation of data collection instruments is a necessary step in all research and should be regarded as an integral component in every stage of the research process; however, the validation process is often not accounted for in detail in published studies. The purpose of this paper is to describe the development and validation of the Ungspråk…

Rarely has the self-description questionnaire II (SDQ-II) been used with Arab samples. The Arab culture has unique characteristics that warrant investigating self-concept among individuals who are impacted by the culture. The SDQ-II has eleven factors and each is measured by 8 or 10 items. This study used a short version of the SDQ-II with an…

Academic competence beliefs have been widely studied. However, conceptual and measurement efforts have not yet been directed toward understanding perceived underachievement (feeling that one's accomplishments fall below perceived capability). We conducted two studies in order to develop and examine validity evidence for the Perceived Academic…

This study aimed at examining the suitability of questionnaire instruments commonly used in large-scale assessments for measuring non-cognitive school effectiveness criteria. It focused on questions of reliability and validity for capturing changes in students within schools across time and the instruments' sensitivity to school effects. The aim…

The Perceptions of Inclusion Questionnaire (PIQ) measures emotional well-being at school, social inclusion, and academic self-concept of students aged 9 to 15 years, with and without Special Educational Needs (SEN). This study aimed to validate the PIQ with French students in 6th grade. The sample included 288 students with an average age of…

The present study sought to examine the psychometric properties of the French and German versions of the Physical Self-Concept Questionnaire for Elementary School Children-Revised (PSCQ-C-R). A sample of 519 children participated in this study. Of those, 197 were French-Canadian and 322 were German. Results support the factor validity and…

Based on previous research and the limitations of existing questionnaires on teachers' value orientations (VOs), the purpose of this study was to develop and provide validity evidence of two French-language versions of a physical education (PE) teachers' VO questionnaire (OVEPS). The two versions are based on a model of 3 VOs (i.e., motor skills,…

Students' causal attributions play an important role in recent studies due to their effects on academic self-concept and performances. Most common causal attributions are students' ability, effort, task difficulty, and chance. The present study aims at identifying students' preferred causal attributions of failure and success while experimenting.…

Being identified with a learning disability makes students vulnerable to experiences of stigmatization, which can be associated with negative academic and emotional effects. Yet, research with other vulnerable populations demonstrates that individual perceptions of stigmatization, or stigma consciousness, are not uniform and that variability in…