Gaps in the scale's sample range produce distribution anomalies, with fewer ratings in the 4 to 4.99 band than in the 3 to 3.99 band¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 1915 · not yet checked against its sources · not reviewed by a person
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Reading the evidence codes
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q2 i? Missing samples in parts of the scale's range lead to non-normal rating distributions, such as fewer 4 to 4.99 ratings than 3 to 3.99 ratings. → Childs 1915
Evidence¶
Childs 1915¶
Childs, H. G. (1915). Measurement of the drawing ability of two thousand one hundred and seventy-seven children in Indiana city school systems by a supplemented Thorndike scale. The Journal of Educational Psychology, 6(7), 391-408. https://doi.org/10.1037/h0075575
q2 · i? · design · r2
Analysis of the distribution table for system A's 1,405 pupils, showing how the scale's missing sample ranges distort the score distribution. The author also notes more ratings of 13 to 13.99 than of 12 to 12.99, and points to Table VII for verification of these facts.
"As a result there are fewer ratings of 4 to 4.99 than there are of 3 to 3.99, whereas a normal distribution of ability should give more."
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Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
scale-sample-gaps-distort-score-distribution |
title |
Gaps in the scale's sample range produce distribution anomalies, with fewer ratings in the 4 to 4.99 band than in the 3 to 3.99 band |
description |
Gaps in the scale's sample range produce distribution anomalies, with fewer ratings in the 4 to 4.99 band than in the 3 to 3.99 band |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1915 |
generated |
by process:wiki-ingest on 2026-10-24 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — childs-1915 |
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