Claims

Students taught with the Self-Determined Learning Model of Instruction gain in self-determination, but not significantly more than a delayed-treatment control group

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i1 small · n=312 high school students with intellectual or learning disabilities, 20 school districts
Currency · newest study 2012 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person

The Self-Determined Learning Model of Instruction (SDLMI) is a teacher-implemented instructional model in which students set education or transition goals, construct action plans to attain them, and self-evaluate progress — with the intended outcome of enhanced self-determination.

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i1 A group-randomized controlled trial of the SDLMI found significant within-group gains in self-determination for the treatment group (small standardized effects) but only small, non-significant between-group differences relative to a delayed-treatment control group. → Wehmeyer et al 2012

Evidence

Wehmeyer et al 2012

Wehmeyer, M. L., Shogren, K. A., Palmer, S. B., Williams-Diehm, K. L., Little, T. D., & Boulton, A. (2012). The Impact of the Self-Determined Learning Model of Instruction on Student Self-Determination. Exceptional Children, 78(2), 135–153. doi:10.1177/001440291207800201

q3 · group-randomized (cluster), modified equivalent control group trial · i1 · small effect, between-group d=0.23 (SDS, final time point); within-group d=0.31 (AIR) and d=0.24 (SDS) · n=312 high school students with intellectual or learning disabilities, 20 school districts · causal · r2

A group-randomized (cluster), modified equivalent control-group study assigned 312 high school students with cognitive disabilities across 20 districts in three states to an SDLMI treatment group or a delayed-treatment control group, tracking self-determination with the AIR Self-Determination Scale and The Arc's Self-Determination Scale (SDS) across three occasions. The treatment group showed significant within-group increases in latent self-determination on both scales (d = .31 AIR, d = .24 SDS) from baseline to the end of Year 2, while the control group, which had typical instruction in Year 1 and received the SDLMI in Year 2, showed no significant change over the same span. Direct between-group comparisons at the final time point were small in magnitude (d = .14 AIR, d = .23 SDS) and the authors report these are not statistically significant, which they attribute partly to small cluster sample sizes and to the control group's own gain after it later received the intervention.

Discussion

What the recorded evidence shows. In the one cluster-randomized trial above, SDLMI students gained in self-determination from pre to post, but the between-group differences against the control group were small (d = 0.23) and not significant, so the trial does not show that the model outperforms usual instruction.

The SDLMI operationalizes principles from Self-Determination Theory — particularly autonomy and self-regulation — into a three-phase instructional cycle: goal setting, action planning, and self-monitoring/adjustment. Because the model embeds student-directed goal setting within ordinary instruction rather than treating motivation as a separate intervention, it is plausibly linked to related findings that autonomy supports intrinsic motivation [+S] and that self-regulated learning improves achievement.

Open questions that the evidence must establish before this claim can be rated: (1) whether measured gains in self-determination generalize beyond self-report to behavioral indicators of autonomy and goal attainment; (2) whether effects hold across disability status, age bands, and cultural contexts, given the model's origins in transition services for students with intellectual and developmental disabilities; (3) how much teacher training and fidelity of implementation the model requires, since a teacher-directed enactment that scripts student choices would undercut the very autonomy mechanism hypothesized to drive the effect; and (4) whether gains persist after the instructional cycle ends.

A further measurement caveat: self-determination is typically assessed via self-report instruments (e.g., the AIR Self-Determination Scale or the Arc's Self-Determination Scale), which are vulnerable to demand characteristics when the intervention explicitly targets the construct being measured. Studies that pair self-report with teacher ratings or observed goal-attainment behavior would substantially strengthen the causal case.

Boundary conditions to watch. The model was developed for and validated primarily with adolescents with disabilities in transition planning contexts; extending it to general-education populations assumes the same autonomy-support mechanism operates without the intensive adult scaffolding the original model provides. Implementation fidelity is a known pressure point: the SDLMI asks teachers to act as facilitators rather than directors, and classrooms where teachers answer the model's student questions for them effectively convert it into teacher-set goals, which should attenuate or reverse any benefit [-M]. Where students are given genuinely consequential choices about goals and action plans, the mechanism aligns with evidence that autonomy supports intrinsic motivation [+S] and that goal setting improves performance [+M]; where choice is nominal, the model reduces to scripted instruction and the hypothesized driver disappears [~M].

Design implication. Practitioners implementing the SDLMI should protect the student's ownership of each phase — the student answers the model's questions, not the teacher — and treat teacher training as part of the intervention rather than an implementation detail. Fidelity monitoring should check for teacher substitution of student answers, the most likely failure mode.

Page metadata
Field Value
type claim
id self-determined-learning-model-of-instruction-improves-self-determination
title Students taught with the Self-Determined Learning Model of Instruction gain in self-determination, but not significantly more than a delayed-treatment control group
status review
evidence_strength pending
newest_evidence 2012
source_checked 2026-10-20
generated by claude/unspecified on 2026-09-25
trust unverified — no one has confirmed this page's content
sources 1 — wehmeyer-et-al-2012

Frontmatter is the page's machine-readable record — see the Schema & Guide.