Claims

Strategy Instruction Needs Conditional Knowledge

Claim · All claims
Evidence · 2 studies · 1 causal r?, 1 theoretical r? · q1–q2
Currency · newest study 1987 · not yet checked against its sources · not reviewed by a person

Teaching learners when and why to use a strategy — not just how — is required for strategy use to transfer beyond the training context. Conditional knowledge is what allows learners to select and adapt strategies independently rather than executing a memorized procedure on near tasks only.

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? Elementary teachers trained to explain the reasoning behind when and why to use reading strategies produced students who were more strategically aware and scored better on reading achievement measures than students of control teachers, directly testing the conditional-knowledge component of strategy instruction. → Duffy et al. 1987

q1 i? Conditional knowledge — knowing when, why, and for what payoff a strategy applies — is proposed as a component of strategic reading distinct from declarative (what) and procedural (how) knowledge, and necessary for self-regulated, flexible strategy use. → Paris et al. 1983

Evidence

Duffy et al. 1987

Duffy, G. G., Roehler, L. R., Sivan, E., Rackliffe, G., Book, C., Meloth, M. S., Vavrus, L. G., Wesselman, R., Putnam, J., & Bassiri, D. (1987). Effects of explaining the reasoning associated with using reading strategies. Reading Research Quarterly, 22(3), 347. doi:10.2307/747973

q2 · quasi-experiment (teachers assigned to trained vs. control condition; abstract does not specify randomization) · i? · no effect size reported · n=unreported (abstract does not give sample size) · causal · r?

Elementary reading teachers were trained to make explicit decisions about when and how to explain the mental reasoning behind using reading skills as strategies, and their students were compared with students of untrained control teachers. Low-reading-ability students of the trained teachers became more aware of lesson content and of the need to be strategic while reading, and scored better on several measures of reading achievement than students of control teachers. Only the publisher's/ERIC abstract was available (see provenance); the finding is reported as a comparison of outcomes, with no effect size or sample size given in that text.

Paris et al. 1983

Paris, S. G., Lipson, M. Y., & Wixson, K. K. (1983). Becoming a strategic reader. Contemporary Educational Psychology, 8(3), 293-316. doi:10.1016/0361-476X(83)90018-8

q1 · theoretical argument (classified by ERIC as an Opinion Paper, not an empirical study) · i? · not applicable — conceptual paper, no effect size · n=N/A · theoretical · r?

This is the source paper that introduces conditional knowledge as one of three components of strategic reading, alongside declarative knowledge (what a strategy is) and procedural knowledge (how to execute it), arguing that knowing when and why to apply a strategy is what lets a reader use it flexibly and adapt it across tasks rather than only on trained materials. It is a theoretical/synthesis paper — no full text or abstract text beyond ERIC's own descriptive summary could be retrieved (see provenance) — so it is cited here as the conceptual source of the conditional-knowledge construct rather than as an empirical test of it.

Studies bearing on this claim

Does teaching when and why to use a procedure, not only its steps, improve flexible use and understanding? This table gathers the studies behind this claim and the 3 narrower claims that bear on it: 7 distinct studies (3 causal, 2 theoretical, 1 quant-synthesis, 1 review), q1–q4, 1 of 7 with an effect size coded. One row per study, codes as each entry records them; no effect is averaged and no verdict is drawn. Built by scripts/synthesize_claim.py from eval/synthesis/; a row that looks wrong is fixed on the claim it comes from.

Study Design Effect as recorded Bears on this claim through
Duffy et al. 1987 q2 · causal · r? i? this claim
Paris et al. 1983 q1 · theoretical · r? i? this claim
Alfieri et al. 2013 q4 · quant-synthesis · r? i2 · medium effect, d=0.50, 95% CI [.44, .56] Comparing cases side by side improves learning and transfer by a moderate average amount, (qualifies)
Gentner et al. 2003 q3 · causal · r? i? Comparing cases side by side improves learning and transfer by a moderate average amount, (qualifies)
Rittle-Johnson & Star 2007 q3 · causal · r? i? Comparing cases side by side improves learning and transfer by a moderate average amount, (qualifies)
Burgos 2021 q1 · theoretical · r2 i? Students can apply procedural knowledge to solve integration problems but show limited und (supports)
Star 2015 q2 · review · r3 i? Alternative-strategy practices are most effective for improving procedural flexibility, wi (supports)

Discussion

Declarative vs. conditional knowledge. Strategy instruction that stops at procedural steps ("first do X, then do Y") produces execution of the strategy on near tasks but poor maintenance and transfer. Conditional knowledge — knowing under which task conditions, for which goals, and with what expected payoff a strategy applies — is what allows learners to select and adapt strategies independently. This is a core component of self-regulated learning, where strategy use is coupled to monitoring and conditional decision-making.

Design implication. Effective strategy programs pair modeling of the strategy with explicit discussion of its conditions of applicability, and prompt learners to evaluate strategy–task fit during practice. Without this pairing, learners may acquire the procedure yet fail to deploy it when the task changes — a pattern consistent with the broader finding that activation of relevant knowledge and explicit advance organizers support appropriate strategy selection [+M]. Programs that embed conditional knowledge in modeling — for example, reciprocal teaching's explicit linkage of summarizing, questioning, clarifying, and predicting to the demands of the text segment at hand — illustrate the pairing of procedure with conditions of use [+M].

Constraints on the claim. Explicit conditional instruction is not uniformly beneficial: for novices, extended discussion of when-and-why can add extraneous load before the procedure itself is fluent, diluting limited working-memory resources in line with cognitive load theory [-M]. Conversely, for advanced learners, conditional knowledge they have already induced from experience can become redundant, and re-teaching it yields little gain [~M] — an instance of the expertise reversal effect. The claim therefore applies most cleanly to learners who have at least procedural fluency in the strategy but have not yet induced its conditions of applicability.

Open questions. The evidence recorded above is one quasi-experiment and the theoretical paper that introduced the distinction, both read as abstracts. Open issues include how much conditional knowledge can be inferred from practice versus needing explicit instruction, whether conditional knowledge benefits are moderated by learner expertise, and how durable conditional knowledge is relative to procedural knowledge of the strategy itself.

Page metadata
Field Value
type claim
id strategy-instruction-needs-conditional-knowledge
title Strategy Instruction Needs Conditional Knowledge
status review
evidence_strength pending
newest_evidence 1987
generated by claude/unspecified on 2026-09-25
trust unverified — no one has confirmed this page's content
sources 2 — duffy-et-al-1987, paris-et-al-1983

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