This dissertation comprises three complementary studies that aim to advance the understanding and practice of Individualized Education Programs (IEP) and Present Levels of Academic Achievement and Functional Performance (PLAAFP) development in special education. In the first study, we systematically reviewed empirical research measuring IEP…

Background: COVID-19 pandemic has been a global health threat since December 2019. It has brought the world to a standstill. The development of a vaccine has sparked great hope among all the individuals across the globe. Purpose: This study aimed to measure the perceived risks and benefits associated with the COVID-19 vaccines and to develop a…

Objectives: The aim of this study was to develop a scale measuring inclusive school quality from parents' perceptions (Parents' perceptions of Inclusive School Quality, PISQ) and investigate the perceptions of Chinese parents of children with disabilities of inclusive school quality using the PISQ scale. Method: The data for 78 parents of children…

The impact of teachers' beliefs on the implementation and effectiveness of Social and Emotional Learning (SEL) programs underscores the essential need for reliable measures of these beliefs. This study aims to explore and validate the psychometric properties of the Teacher Social and Emotional Learning Beliefs Scale (TSELBS) within the Chinese…

Background: School feeding programs' evaluation requires the measurement of food insecurity, a more objective indicator, within school in low-income countries. The Global Child Nutrition Foundation (GCNF) uses subjective indicators to report school feeding coverage rates across many countries that participate in the global survey of school meal…

The importance of afterschool hours for youth development is widely acknowledged, and afterschool settings have recently received increasing attention as an important venue for youth interventions, bringing a growing need for reliable and valid measures of afterschool quality. This study examined the extent to which the two observational tools,…

The aim of this study was to elaborate a scale to measure In-service Teachers' Attitudes about Inclusive Education (ITAIE). The 18-item scale was developed using a sample of 264 in-service teachers. Factor analysis indicated five categories: 1) the psychosocial competences of teachers, (2) the psycho-pedagogical advantages of the inclusive…

Rigorous evaluation of social and emotional learning programs requires the use of measures that provide reliable and valid information on the meaningful differences in children's social emotional skills across treatment and control groups, as well as changes over time. In contexts affected by conflict and crisis, few measures can provide the…

School-based psychological services are typically provided through a triadic model of consultation in which a school psychologist works directly with a teacher or school staff member to address the academic, behavioral, or mental health concerns of a student. With advances in current technology, school psychologists have the capacity to use…

Early intensive behavioral intervention (EIBI) is a well-established treatment for children with autism spectrum disorders (ASD) and is thus widely recommended. However, the content of EIBI programs presumably varies considerably and may not always be tailored to the individual strengths and deficits of each child. Few assessment tools exist (and…

This quasi-experimental study examined expressive vocabulary outcomes for Parent-Child Home Program (PCHP) toddlers, after one year of home-visiting services. First, this study applied Rasch modelling to establish the construct validity and reliability of a widely used expressive vocabulary measure, as modified for a sample of ethnic and…

Citizen science programs provide opportunities for students to help professional scientists while fostering science achievement and motivation. Instruments which measure the effects of this type of programs on student motivational beliefs are limited. The purpose of this study was to describe the process of examining the reliability and validity…

The PEP-R (psychoeducational profile revised) is an instrument that has been used in many countries to assess abilities and formulate treatment programs for children with autism and related developmental disorders. To the end to provide further information on the PEP-R's psychometric properties, a large sample (N = 137) of children presenting…

Everyone who runs a youth program believes in their hearts that their program helps kids, but in their heads, they know they need convincing data to prove it. This guide--updated from 2011--is here to help them get the data they need. The guide addresses a common problem throughout the youth field: Out-of-school time (OST) programs can help youth…

Four students with moderate intellectual disabilities used electronic lists delivered on an iPhone to assist them in skills related to community-based grocery shopping. An alternating treatments design was used to assist in comparing the effectiveness and efficiency of three different types of lists (Text Only, Audio + Text, and Picture + Text).…