Factor analysis is widely utilized to identify latent factors underlying the observed variables. This paper presents a comprehensive comparative study of two widely used methods for determining the optimal number of factors in factor analysis, the K1 rule, and parallel analysis, along with a more recently developed method, the bass-ackward method.…

Purpose: There are many aspects of words that can influence our lexical processing, and the words we are exposed to influence our opportunities for language and reading development. The purpose of this study is to establish a more comprehensive understanding of the lexical challenges and opportunities students face. Method: We explore the latent…

Examining the dimensionality of oral discourse language skills in early childhood is crucial in informing theories of language and literacy development. This study examined the factor structure of linguistic and discourse features in oral text production for second graders. A total of 330 English-speaking second graders (M[subscript age] = 7.33,…

Item factor analysis (IFA), also known as Multidimensional Item Response Theory (MIRT), is a general framework for specifying the functional relationship between a respondent's multiple latent traits and their response to assessment items. The key element in MIRT is the relationship between the items and the latent traits, so-called item factor…

Background: The Evidence-Based Practice Attitudes Scale (EBPAS) is widely used in implementation research, but it has not been adapted and validated for use among general education teachers, who are most likely to deliver evidence-based prevention programs in schools, the most common setting where youth access social, emotional, and behavioral…

Culturally responsive assessment practices include validated measures appropriate for use with diverse populations. Considering the increasing population of Latinx students in U.S. schools, measures need co-validated English and Spanish (SEHS) language forms. This study examined the Social Emotional Health Survey--Secondary with Latinx students…

Organization, time management, and planning (OTMP) skills are behavioral manifestations of executive functioning linked to academic outcomes. Interventions to improve OTMP skills have shown favorable outcomes. The Children's Organizational Skills Scale parent and teacher forms (COSS-P, COSS-T) are widely used for assessing OTMP skills, but there…

Multilevel structural equation (MSEM) models allow researchers to model latent factor structures at multiple levels simultaneously by decomposing within- and between-group variation. Yet the extent to which the sampling ratio (i.e., proportion of cases sampled from each group) influences the results of MSEM models remains unknown. This paper…

Robust evidence links students' positive mental health with academic achievement and provides a compelling rationale for developing and refining strength-based assessments. The Social Emotional Health Survey--Secondary (SEHS-S) assesses adolescents' social and emotional skills and positive psychological dispositions. Previous studies provide…

Little is known about whether a widely used mindfulness measure in adults--the Five Facet Mindfulness Questionnaire (FFMQ)--is also reliable and valid in adolescents. The current study evaluated the psychometric properties of a 20-item short-form FFMQ in a sample of 599 high school students (M[subscript age] = 16.3 years; 49% female) living in the…

As many as 1 in 5 youth in the United States experience social, emotional, and behavioral problems. However, many students with mental health concerns are unidentified and do not receive adequate care. The purpose of this study was to evaluate the factor structure, measurement invariance, and the concurrent and predictive validity of the Early…

This study reports on validation of a writing motivation survey and its relationship with a variety of indicators of academic performance of 566 undergraduate students drawn from six US postsecondary institutions. A writing motivation survey was used to capture students' writing goals, confidence, beliefs, and affect. Two research questions are…

As research continues to show the benefits of high-quality early childhood education, it is important to ensure that measures are available to assess the full impacts of these programs for student outcomes. Many achievement measures and observational measures exist, but there is a need for measures of children's experiences at the preschool level.…

The current paper investigates the structural validity of the Children's Concentration and Empathy Scale (CCES), which was designed based on Montessori's developmental theory to assess, using teacher ratings, the coherence of attention-related characteristics (concentration, empathy, and normalization) in children from 1.5 to 12 years old. The…

Purpose: The purpose of this study was to examine the measurement structure of the linguistic features of speech-language pathologists' (SLPs) talk during business-as-usual therapy sessions in the public schools, and to test the longitudinal stability of a theorized dimensional structure consisting of quantity, grammatical complexity, and lexical…