Claims

Sample selection bias may have led the study to overestimate language outcomes for adolescents with long-term CI use

Claim · All claims
Evidence · 1 study · associational r2 · q1
Currency · newest study 2011 · not yet checked against its sources · not reviewed by a person

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.

q1 i? The authors state that volunteer selection at both recruitment waves may have inflated observed language outcomes relative to the full CI population. → Geers Ann E. 2011

Evidence

Geers Ann E. 2011

Geers Ann E., Sedey Allison L. (2011). Language and Verbal Reasoning Skills in Adolescents with 10 or More Years of Cochlear Implant Experience. Ear and Hearing. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3157037/

q1 · i? · associational · r2

Authors' stated limitation in the Discussion: participating families were highly motivated early adopters with English-only homes and above-average parental education, and the 112 follow-up participants outperformed the 72 non-returners on some CI-E outcome measures.

"These sample selection factors may have resulted in our overestimating language outcomes to be expected for adolescents with long-term use of CIs."

Discussion

Page metadata
Field Value
type claim
id ci-study-selection-bias-overestimate
title Sample selection bias may have led the study to overestimate language outcomes for adolescents with long-term CI use
description Sample selection bias may have led the study to overestimate language outcomes for adolescents with long-term CI use
status review
evidence_strength weak
newest_evidence 2011
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — geers-ann-e-2011

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