Child Evidence

Computerized working-memory training (e.g., Cogmed) reliably improves · Child Evidence

special education / working-memory training & far transfer

Computerized working-memory training (e.g., Cogmed) reliably improves performance on the trained and closely similar memory tasks (near transfer), but multiple high-quality meta-analyses and randomized trials show it does NOT produce meaningful or lasting improvements in general cognitive ability or academic achievement (far transfer).

For the Court

Established (as a well-supported null): working-memory training improves trained tasks but does not reliably transfer to academic achievement or general cognition.

What This Claim Does NOT Say

Does not claim working-memory training is useless for the trained tasks; near transfer is real and replicable.
Does not claim NO study ever finds far transfer; isolated trials (often with weaker controls or clinical samples) report effects, but the weight of high-quality evidence shows none.
Does not generalize to all cognitive or educational interventions; the finding is specific to commercial process-based working-memory training.
Does not establish that the absence of far transfer means the underlying skill is unimportant — only that training it in isolation does not generalize.

Scope — Where It Holds

Convergent meta-analyses (Melby-Lervåg & Hulme, 2013; Sala & Gobet, 2017; Aksayli et al., 2018) find robust near-transfer but near-zero far-transfer, with effects shrinking as design quality rises; a population-based RCT found no academic benefit and worse math at 2 years (Roberts et al., 2016). A minority of trials report far-transfer in clinical (ADHD) samples (Bigorra et al., 2016), but these are not the weight of the evidence.

Sources & Verification

Seminal

Melby-Lervåg, M., & Hulme, C (2013). Is working memory training effective? A meta-analytic review. Developmental Psychology.
Meta-analysis
Working-memory training produced reliable short-term improvements on memory tasks (near transfer) but NO convincing evidence of generalization to nonverbal/verbal ability, attention, word decoding, or arithmetic (far transfer).
Bearing on this claim: Meta-analysis: near transfer yes, far transfer no.
doi.org/10.1037/a0028228

Supporting

Sala, G., & Gobet, F (2017). Working Memory Training in Typically Developing Children: A Meta-Analysis of the Available Evidence. Developmental Psychology.
Meta-analysis
Training improved WM-related skills (g = 0.46) but showed little far-transfer to fluid intelligence, attention, math, or literacy (g = 0.12); effects shrank with higher-quality designs (active controls, randomization).

Precedent Bridge

An intervention that does not transfer to academics is not "reasonably calculated to enable progress"; Endrew F. supports grounding IEP services in evidence of far transfer, which working-memory training lacks.580 U.S. 386 (2017)

Limits & Counter-considerations

Positive far-transfer results cluster in studies with weaker controls or clinical samples; publication bias has affected the literature; and the null is specific to commercial process-based working-memory training, not all educational interventions.

Full Dossier

Last reviewed June 28, 2026