Polya and Dahmus methods do not differ on the problem solution criterion¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 1972 · not yet checked against its sources · not reviewed by a person
Evidence quality · No study behind this claim is a peer-reviewed article with a DOI: it rests on an ERIC document (a report, conference paper or thesis). It is kept because 4 design pages cite it; treat it as a lead to check, not an established finding.

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.

q2 i? There was no significant difference between Polya Method and Dahmus Method groups on scores for correctly solving the verbal problems; equivalence was not tested. → Bassler 1972

Evidence¶

Bassler 1972¶

Bassler, O. C.; Beers, M. I.; Richardson, L. I. (1972). Comparison of Two Instructional Strategies for Teaching the Solution to Verbal Problems. Final Report. George Peabody College for Teachers. https://eric.ed.gov/?id=ED075260

q2 · i? · causal · r2

ANOVA on the problem solution criterion (same 48-student design) found the strategy main effect non-significant (F = 1.07): "There was no significant effect due_to treatment." Posttest cell means were highest (12.5) for high-ability students under both treatments; the scanned table is too degraded to read the lowest cell reliably.

"There was no significant effect due_to treatment."

Discussion¶

Learner Variables¶

Algebraic Thinking — outcome: instruction changes it

Three weeks of explicit language-focused strategy instruction produced no significant word-problem gain in this study — the general claim this finding bears on, with the studies behind it
Dahmus Method students translated phrases successfully but failed to combine them into a single solution equation — related
Polya Method students outscore Dahmus Method students on the equation criterion for verbal problems — related
Algebra ability level differences appear on both criteria with no treatment-by-ability interaction — related
On the problem solution criterion, verbal problem solving scores do not decline over four weeks and rise on the more complex problems — related

Page metadata

Field	Value
`type`	`claim`
`id`	`no-treatment-difference-problem-solution-criterion`
`title`	`Polya and Dahmus methods do not differ on the problem solution criterion`
`description`	`Polya and Dahmus methods do not differ on the problem solution criterion`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`1972`
`generated`	by `process:wiki-ingest` on `2026-09-27`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `bassler-1972`

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