The two test forms were built to pair exercises of closely the same value, equal total values, and similar inter-exercise intervals, with 100 total points per form¶

Claim · All claims
Evidence · 1 study · design r2 · q1
Currency · newest study 1928 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q1 i? In arranging exercises into the two standardized forms, exercises of closely the same value were paired across forms, the ten exercises per form were selected to have the same total values and closely the same inter-exercise interval, and unit values were converted so the total possible score is 100 points. → Greene 1928

Evidence¶

Greene 1928¶

Greene, H. A. (1928). Tests for the Measurement of Certain Phases of Linguistic Organization in Sentences. The Journal of Educational Psychology. https://psycnet.apa.org

q1 · i? · design · r2

Definitional/descriptive statement of the test construction procedure. The article reports that of two easy exercises of closely the same value one went in Form A and the other in Form B, and that unit values were converted to point values so the total possible score on a given form is 100 points.

"the two forms comprising ten exercises each would have the same total values. A third consideration was that the two forms should have closely the same inter-exercise interval."

Discussion¶

Related Claims¶

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• The Organization Test exercises were scaled on 1634 children in grades three to eight, yielding difficulty values from .03 to 6.4 units
• Percentile-difference scales are crude and embody a fundamental fallacy because percentile units are not equal intervals — related