A Self-Instructional Online Program for Early Childhood and Elementary Teachers Supporting Autistic Children and Children With Developmental Delays

The Autism Spectrum Knowledge Questionnaire (ASK-Q) is a 37-item questionnaire designed to assess knowledge and understanding of autism spectrum disorder (ASD). Each item is rated as "Agree" or "Disagree". Items are scored dichotomously (1 = correct response, 0 = incorrect response). Total scores are calculated by summing correct responses across all 37 items. Total scores range from 0 (lowest knowledge) to 37 (highest knowledge), with higher scores reflecting greater knowledge of autism spectrum disorder.

The Participatory Autism Knowledge Measure (PAK-M) is a 56-item questionnaire designed to measure autism knowledge, neurodiversity-oriented beliefs, and perspectives informed by the lived experiences of autistic individuals. Each item is rated on a 7-point Likert scale, with 1 indicating "Strongly disagree" and 7 indicating "Strongly agree". After reverse-scoring negatively worded items, total scores are calculated by summing responses across all 56 items. Total scores range from 56 to 392, with higher scores indicating greater knowledge and more accurate understanding of autism and neurodiversity.

The Survey for Educators' Empowerment for Diversity (SEED) is a 68-item instrument developed by the research team to measure changes in knowledge related to autism and developmental delay following participation in the program. The instrument is organized around 13 core topics addressed in the program, with 5 to 7 items per topic, yielding a total of 68 items. Each item uses a dichotomous true-or-false response format. Responses are scored as 1 for correct answers and 0 for incorrect answers. Total scores are calculated by summing correct responses across all items. Total scores range from 0 to 68, with higher scores indicating greater knowledge and understanding of autism and developmental delay.

The Teacher Attitudes Toward Inclusion Scale (TATIS) is a 14-item self-report questionnaire designed to assess teachers' overall attitudes toward inclusive education. The scale evaluates beliefs about the inclusion of students with disabilities, perceived effectiveness of inclusive practices, and teachers' personal willingness and commitment to implementing inclusive classroom practices. Each item is rated on a 7-point Likert scale, with 1 indicating "Strongly disagree" and 7 indicating "Strongly agree". After reverse-scoring negatively worded items, total scores are calculated by summing responses across all 14 items. Total scores range from 14 to 98, with higher scores indicating more positive attitudes toward inclusive education and stronger support for the inclusion of students with disabilities in general education classrooms.

The Neurodiversity Attitudes Questionnaire (NDAQ) is a 28-item self-report questionnaire designed to assess overall attitudes and perceptions toward neurodiversity. Each item is rated on a 5-point Likert scale, with 1 indicating "Strongly disagree" and 5 indicating "Strongly agree." After reverse-scoring negatively worded items, total scores are calculated by summing responses across all 28 items. Total scores range from 28 to 140, with higher scores indicating more positive attitudes toward neurodiversity and greater endorsement of neurodiversity-informed perspectives.

The Sentiments, Attitudes, and Concerns about Inclusive Education - Revised (SACIE-R) is a 15-item self-report questionnaire designed to assess teachers' emotional reactions, attitudes, and concerns regarding inclusive education. The scale evaluates affective responses toward students with disabilities, acceptance of inclusive education, and concerns related to implementation challenges and perceived difficulties in inclusive classroom settings. Each item is rated on a 4-point Likert scale, with 1 indicating "Strongly disagree" and 4 indicating "Strongly agree". After reverse-scoring negatively worded items, total scores are calculated by summing responses across all 15 items. Total scores range from 15 to 60, with higher scores indicating more positive sentiments and attitudes toward inclusive education and fewer concerns about inclusion.

The Teachers' Efficacy for Inclusive Practices (TEIP) scale is a 14-item self-report questionnaire designed to assess teachers' self-efficacy beliefs regarding their ability to implement inclusive education practices. The scale evaluates three domains: inclusive instructional strategies, behavior management, and collaboration and support. Each item is rated on a 6-point Likert scale, with 1 indicating "Strongly disagree" and 6 indicating "Strongly agree". Total scores are calculated by summing responses across all 14 items. Total scores range from 14 to 84, with higher scores indicating greater self-efficacy for implementing inclusive educational practices.

The SEED Program Acceptability and Feasibility Questionnaire is a 20-item self-report instrument developed by the research team to assess participants' satisfaction with the program, perceived appropriateness of program content, feasibility, implementation capacity, and perceived efficiency of the online intervention. The questionnaire consists of two sections: (1) a 10-item scale assessing satisfaction and content appropriateness, and (2) a 10-item scale assessing feasibility, including perceived practicality, difficulty level, ability to implement intervention strategies, efficiency, pacing, and overall quality. Each item is rated on a 5-point Likert scale, with 1 indicating "Strongly disagree" and 5 indicating "Strongly agree". Total scores are calculated by summing responses across all 20 items. Total scores range from 20 to 100, with higher scores indicating greater acceptability, feasibility, and overall perceived quality of the SEED online intervention program. Two additional o