This dissertation presents an innovative approach to examining the keying method, wording method, and construct validity on psychometric instruments. By employing a mixed methods explanatory sequential design, the effects of keying and wording in two psychometric assessments were examined and validated. Those two self-report psychometric…

The Repetitive Behaviours Questionnaire for Adults (RBQ-2A) measures two factors of restricted and repetitive behaviours (RRBs) associated with autism. However, the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) provides four criteria for RRBs: repetitive motor behaviours, insistence on sameness, restricted interests, and interest…

The COVID-19 pandemic has fast-tracked interest in telehealth methods to guarantee the continuity of care of children with Autism Spectrum Disorder (ASD). Store-and-forward telehealth approaches offer the opportunity to facilitate timely screening of ASD, allowing parents to record videos of their child's behaviors, subsequently shared with…

Objective: In the United States, autism spectrum disorder (ASD) is significantly less diagnosed in Spanish-speaking populations compared to other racial/ethnic groups. Structural barriers such as transportation, insurance, and time have been documented within this population. However, many families also report language as a barrier. The present…

The current study examined the reliability of The Reading League Curriculum-Evaluation Guidelines (CEGs), which were developed to help school-based teams rate the presence of red flags when considering adopting specific literacy curricula. Coders (n = 30) independently used the CEGs to evaluate a free online English language arts curriculum. The…

Adolescent anhedonia is a multidimensional construct defined as the loss of enjoyment or pleasure across multiple domains of life. Anhedonia is concurrently associated with substantial impairment and distress, and it prospectively predicts the onset, severity, and treatment of depression. Despite its demonstrated importance, a limited number of…

Measurement-based care, an evidence-based practice endorsed by the American Psychological Association, is underpinned by routine assessment supporting a data-driven approach to clinical decision making. Nonetheless, there is a need for brief, nonproprietary measures assessing non-symptom-based outcomes. The present study examined the psychometric…

The Caring for Bliss Scale (CBS) is a new measure that assesses an individuals' capacity to cultivate inner joy and happiness. Developed in the United States, its generalizability remains unknown in non-Western contexts. This research explored the scale's cross-national invariance among college students in the Philippines (n = 546) and the United…

This article reports on the development and psychometric evaluation of a new teacher observation instrument to systematically assess young primary school students' well-being and detect potential indicators of psychological trauma, the RaPTOSS: "Risk and Protective factors Trauma Observation School Situations." The RaPTOSS is developed…

Although equality of opportunity in education is a current and important issue, most of the studies on this subject are based on theoretical studies rather than empirical studies. The main reason for this can be said to be the lack of a valid and reliable measurement tool in this field. For this reason, this study aims to develop a valid and…

The Caregiver Strain Questionnaire assesses the three dimensions of caregiver strain, namely the objective, subjective externalized and subjective internalized strain. It was validated among caregivers of children with Autism Spectrum Disorder (ASD) in the United States and Mainland China with promising psychometric properties. This study aimed to…

Background: Valid and reliable instruments for measuring emotional development are critical for a proper diagnostic assignment in individuals with intellectual disabilities. This exploratory study examined the psychometric properties of the items on the Scale of Emotional Development--Short (SED-S). Method: The sample included 612 adults with…

A critical aspect of spoken language development is learning to categorize the sounds of the child's language(s). This process was thought to develop early during infancy to set the stage for the later development of higher-level aspects of language (e.g., vocabulary, syntax). However, many recent studies have shown that speech categorization…

The aim of this article is to review the psychometric properties of the psychological tests that are being used in the Nordic countries during pregnancy and the child's first two years of life. A systematic literature search was performed for 33 identified tests routinely used in health care, using specific review databases as well as PsycInfo,…

We conducted a psychometric synthesis of the internal consistency reliability and internal structure of scores on the English versions of the Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) in publications between 2012 and 2022. Results supported acceptable-to-strong reliability and validity evidence of scores…