Person-oriented classification predicts later GPA significantly better than dimensional or categorical methods¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2007 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2010: tool and model accuracy changes quickly
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.
q3 i? A person-oriented (cluster) classification system derived from teacher ratings predicted grade point average seven months later significantly better than both dimensional and categorical methods. → Dowdy 2007
Evidence¶
Dowdy 2007¶
Dowdy, E., & Kamphaus, R. W. (2007). A Comparison of Classification Methods for Use in Predicting School-Based Outcomes. The California School Psychologist, 12, 121-132. https://eric.ed.gov/?id=EJ896649 doi:10.1007/bf03340936
q3 · i? · associational · r2
Regression analysis of 558 children (grades 1-5) whose BASC-TRS teacher ratings formed three classification systems, with outcomes collected seven months later. The cluster method's predicted GPA correlated .605 with later GPA (R squared = .366) versus .443 for categorical and .447 for dimensional; the article reports the cluster method was "significantly better" by t-test. No standardized effect size was printed for the between-method contrast.
"Overall, results suggest that person-oriented methods predicted GPA significantly better than either dimensional or categorical methods, while there was no significant difference in the prediction of GPA using dimensional or categorical methods."
Discussion¶
Related Claims¶
- Dimensional classification was superior for predicting Opportunity Room visits and suspensions — related
- Person-oriented and dimensional methods each predicted reading achievement significantly better than the categorical method — related
- No classification method was significantly superior for predicting mathematics achievement — related
- Person-oriented classification predicted days absent significantly better than categorical, with no method differences for days tardy — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
person-oriented-classification-best-predicts-gpa |
title |
Person-oriented classification predicts later GPA significantly better than dimensional or categorical methods |
description |
Person-oriented classification predicts later GPA significantly better than dimensional or categorical methods |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2007 |
recheck_by |
2010 |
generated |
by process:wiki-ingest on 2026-09-27 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — dowdy-2007 |
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