AAC vs Explicit Instruction Review

I need a rigorous literature review that directly compares the effectiveness of AAC modelling with explicit instruction for students on the autism spectrum. I’m interested only in peer-reviewed journal articles published within the last five years.

Here’s what I expect:
• A systematic search strategy (databases, search strings, inclusion/exclusion criteria).
• A PRISMA-style flow diagram tracking article selection.
• A comparative synthesis highlighting methodological quality, participant characteristics, intervention features, and outcome measures for both approaches.
• A critical discussion that pinpoints which method shows stronger evidence of effectiveness, under what conditions, and any gaps that remain.
• A neatly formatted reference list in APA 7th.

Please draw on your experience with educational research, AAC, single-case design analysis, and statistical tools such as effect-size calculators where appropriate. The final document should read as a stand-alone section suitable for incorporation into a graduate thesis or journal manuscript, complete with tables or summary matrices that make the findings easy to digest.