S0105 · cunningham_stanovich · registry identity

Print Exposure and Vocabulary Research

Cunningham · ?

study independent4 occurrences across 2 books · load 8

External resolution

Resolution status: not_found

Bears on

Canonical propositions this source was matched as evidence for.

P05 — Learning is cumulative: what a student can learn next is constrained by what they already know, so early differences in knowledge compoun…

P06 — Vocabulary size is the best visible proxy for a person's accumulated general knowledge, and it is built slowly by accretion over many yea…

How Hirsch uses it

Every occurrence, grouped by book and chapter, with the claim it was linked to support and (where the extraction regenerated one) the underlying warrant.

2006 · The Knowledge Deficit

A study demonstrating that 2nd grade vocabulary levels are a reliable predictor of 11th grade academic outcomes.

direct Vocabulary in second grade serves as a reliable predictor of academic performance in eleventh grade.

ch 3 · empirical_study · kd:ch3_E18

Warrant (implicit): Early childhood linguistic development creates a path-dependent trajectory that determines long-term academic success within the current school system.

could fail ifThe correlation may be driven by stable socioeconomic status or underlying general intelligence (g-factor) that influences both early vocabulary and later test scores.

Statistical data showing that printed materials contain a higher frequency of unique and varied words compared to oral speech.

direct The printed page makes the largest contribution to vocabulary size because it contains a greater variety of words than everyday oral speech.

ch 3 · statistical_data · kd:ch3_E19

Warrant (implicit): The primary source of vocabulary growth is the medium that provides the highest density of unique lexical tokens.

could fail ifInteractive oral conversation involves feedback loops and social cues that may make new words more 'sticky' and easier to learn than the passive experience of reading.

2016 · Why Knowledge Matters

Research by Anderson, Miller, Stanovich, Guthrie et al. showing contextualized experiences are best for vocabulary gain.

direct Systematically contextualized verbal experiences are the most efficient means for gaining large vocabularies.

ch 3 · expert_testimony · wkm:ch3_E10

Warrant (explicit): Acquiring vocabulary is most effective when new words are encountered repeatedly within a coherent, meaningful conceptual framework.

could fail ifThis principle assumes that all students possess the baseline focus and prerequisite knowledge to benefit from the context, which may not be true for all learners.

Keith Stanovich's research on the 'Matthew Effect' regarding early reading and growth in knowledge/vocabulary.

direct The early grades serve as the 'fulcrum' for determining a student's subsequent life chances.

ch 8 · empirical_study · wkm:ch8_E10

Warrant (implicit): Early disparities in knowledge acquisition create a path-dependent feedback loop where the ability to gain new information is predicated on the volume of information already possessed.

could fail ifLate-blooming cognitive development or high-quality secondary interventions can sometimes overcome early-grade deficits, decoupling early outcomes from life chances.

Endnote numbers seen

Raw book:chapter:endnote references collected during endnote backfill.

wkm:3:16wkm:8:8

Raw source_reference strings seen

As they appeared before normalization/consolidation into this source identity.

Anne Cunningham and Keith Stanovich
Keith E. Stanovich, 'Matthew Effects in Reading' (1986)
Richard Anderson, George A. Miller, Keith Stanovich, John Guthrie, et al.