Claims

WTC decreases as class size increases on both talk-time and turns of talk

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 2012 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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.

q2 i? Class observation showed that as class size increased, WTC decreased on both indicators, turn of talk and talk time. → Zeinab Moradi Khazaei 2012

Evidence

Zeinab Moradi Khazaei 2012

Zeinab Moradi Khazaei, Ahmad Moin Zadeh & Saeed Ketabi. (2012). Willingness to Communicate in Iranian EFL Learners: The Effect of Class Size. English Language Teaching, 5(11). https://doi.org/10.5539/elt.v5n11p181

q2 · i? · associational · r1

Six weeks of observation of three classes (5, 10, and 15 students), each lasting one and a half hours, recorded each student's talk time and turns of talk; both indicators decreased as class size increased. No effect size is printed.

"Class observation revealed that as class size increased, WTC decreased; this held true with regard to both indicators, namely turn of talk and talk time."

Discussion

Page metadata
Field Value
type claim
id wtc-decreases-as-class-size-increases
title WTC decreases as class size increases on both talk-time and turns of talk
description WTC decreases as class size increases on both talk-time and turns of talk
status review
evidence_strength weak
newest_evidence 2012
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-09-27
trust unverified — no one has confirmed this page's content
sources 1 — zeinab-moradi-khazaei-2012

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