Claims

IAR and CDR factor scores intercorrelate too weakly to confirm the two instruments measure the same locus of control construct

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 1975 · 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 a design page cites 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? Of 100 possible intercorrelations of IAR and CDR factor scores, only thirteen were significant at the .05 level, leading the author to question whether the instruments measure the same construct. → Thomas 1975

Evidence

Thomas 1975

Thomas, Mollie B. (1975). Underlying Constructs of Locus of Control of Reinforcement. https://eric.ed.gov/?id=ED108039

q2 · i? · associational · r1

Correlational analysis of factor scores from 188 ninth-graders (17% black, 83% white; 54% males, 46% females) in an Illinois junior high school. The author reports "thirteen of a possible 100 intercorrelations" significant, concluding the low correlations "question whether or not the two instruments are in fact measuring the same construct."

"As indicated in Table 5, thirteen of a possible 100 intercorrelations of the CDR and IAR factor scores were significant at the .05 level, six of which were significant at the .01 level."

Discussion

Page metadata
Field Value
type claim
id iar-cdr-factor-scores-low-intercorrelations
title IAR and CDR factor scores intercorrelate too weakly to confirm the two instruments measure the same locus of control construct
description IAR and CDR factor scores intercorrelate too weakly to confirm the two instruments measure the same locus of control construct
status review
evidence_strength moderate
newest_evidence 1975
generated by process:wiki-ingest on 2026-09-26
trust unverified — no one has confirmed this page's content
sources 1 — thomas-1975

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