Submitted:
31 August 2025
Posted:
01 September 2025
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Abstract
Keywords:
1. Introduction
- H1: There is an association between the level of knowledge of augmentative and alternative communication technologies and the academic training of university students in the Special Education program.
- H2: There is no association between the level of knowledge of augmentative and alternative communication technologies and the academic training of university students across different education programs.
- SO1: To determine the degree of knowledge about augmentative and alternative technologies among students in the Special Education program.
- SO1: To identify correlations between academic training and the level of knowledge about augmentative and alternative communication technologies.
2. Materials and Methods
2.1. Participants and Sampling
- N = population size
- Z = standardized value for the desired confidence level (90%, Z = 1.645)
- e = permissible sampling error (5%)
- p = proportion of the population with the characteristic (0.5)
- q = 1 − p (0.5)
- The most conservative assumption (p = q = 0.5) was used to maximize the required sample size and ensure robustness under conditions of maximum variance.
2.2. Instrument
- Social validity
- Receptive and expressive language development
- School environment support
- Communicative function and opportunities
- Communication effectiveness
- Quality of collaboration and peer interaction
- Communicative spontaneity
2.3. Reliability Analysis
- α = Cronbach’s alpha coefficient
- k = number of items
- σ²yi = variance of the individual item scores
- σ²x = total variance of the observed total test scores
2.4. Procedure
- Planning and Development: Included a detailed review of the problem, formulation of objectives, methodology design, sample definition, and a systematic literature review. Ethical approval was obtained from the relevant institutional review board.
- Instrument Adaptation: The selected instrument was reviewed and adapted, including linguistic and cultural adjustments. An expert panel in disability and/or technology evaluated the instrument. Scales, weighting, reliability indices, stability, and internal consistency were analyzed. A pilot test was conducted to refine the instrument.
- Data Collection and Analysis: The instrument was administered, and preliminary descriptive results were obtained. Data were analyzed using statistical tests to examine the research hypotheses. Results were organized into tables and graphs for interpretation.
3. Results
3.1. Sample Profile
| Characteristic | Category | n | % |
| Gender | Female | 45 | 55.6 |
| Male | 36 | 44.4 | |
| Age Group (years) | 18–22 | 17 | 21.0 |
| 23–26 | 39 | 48.1 | |
| 27–29 | 25 | 30.9 | |
| Educational Status | Full-time student | 63 | 77.8 |
| Unemployed | 10 | 12.3 | |
| Scholarship recipient | 6 | 7.4 |
3.2. Knowledge and Perceptions of AAC Technologies
| Item Code | Domain | Mean | SD |
| P2_REC | Enhances classroom participation | 4.20 | 0.81 |
| P3_REC | Functions as educational response tool | 4.15 | 0.78 |
| P4_REC | Supports student autonomy | 4.02 | 0.85 |
| P5_REC | Knowledge: Intellectual disability tech | 2.87 | 1.12 |
| P6_REC | Knowledge: Autism tech | 2.51 | 1.24 |
| P10_REC | Knowledge: Voice disorder tech | 2.60 | 1.18 |
3.3. Attitudes Toward AAC Adoption
4. Discussion
5. Conclusions
- Policy Development: Implementing policies that mandate and support AAC training within teacher education curricula.
- Curriculum Integration: Embedding hands-on, practical AAC training into special education degree programs.
- Resource Allocation: Ensuring equitable access to both high- and low-tech AAC tools for all students and teacher trainees.
- Future Research: Conducting further studies with larger, more diverse samples (including experienced practitioners) to generalize findings and develop effective, contextually relevant training models.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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