A single true-false test correlates with an essay examination (.33) about as highly as essay examinations correlate with each other¶

Claim · All claims
Evidence · 1 study · associational r1 · q2 · i2 medium
Currency · newest study 1920 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i2 The true-false with essay correlation (.33) is as high as the average essay-essay inter-correlation (.35), and the standard errors indicate real differences between these coefficients are improbable. → Arthur I. Gates 1920

Evidence¶

Arthur I. Gates 1920¶

Arthur I. Gates, Teachers College, Columbia University. (1920). The True-False Test as a Measure of Achievement in College Courses. The Journal of Educational Psychology. https://eric.ed.gov/?q=true-false+test+as+a+measure+of+achievement+in+college+courses+gates

q2 · i2 · associational · r1

Correlational analysis in Tables IV-VI with printed correlations: true-false with essay r = .33 (N = 33), true-false with written work r = .25 (N = 14), essay with written work r = .30 (N = 5). The article concludes a true-false test yields as high a correlation with an essay as another essay would.

"A single True-False test gives a correlation with an essay examination which is low, but as high as the average inter-correlation of essay examinations. The correlation of written work with the essay is almost as high, while the correlation of true-false with written work is slightly less. The a (tr-obt. av.) indicates that real differ-ences between these coefficients are improbable."

Discussion¶

Related Claims¶

• A single true-false test correlates with the criterion of achievement (.65) more highly than an essay examination (.56) or written work (.39) — related
• True-false tests correlate with intelligence ratings (.406) more highly than essays (.344) or written work (.255), and combining true-false tests raises the intelligence correlation while combining essays does not — related
• Case studies of sharp test disagreements suggest the better the criterion of achievement, the greater the predictive value of true-false compared with essay examinations — related