Specific arithmetic problems were identified as troublesome through percentage analysis of test solutions¶

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 1918 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Fifty-three per cent of the seventh grade solved correctly all except the last three examples in the Woody Test, and fifty-six per cent of the eighth grade solved 32 of the 36 problems. → Buford Johnson 1918

Evidence¶

Buford Johnson 1918¶

Buford Johnson. (1918). The Use of Tests in the Evaluation of Methods of Instruction. The Journal of Educational Psychology. https://www.google.com/search?q=The+Use+of+Tests+in+the+Evaluation+of+Methods+of+Instruction+Johnson+1918

q2 · i? · associational · r1

Class-level analysis of Woody Test solution percentages for grades VII and VIII. The article reports "Fifty-three per cent, of the seventh grade solved correctly all except the last three examples" and notes the time limit affects difficulty evaluation at the end.

"Fifty-three per cent, of the seventh grade solved correctly all except the last three ex- amples in the Woody Test, only two pupils solving the last example. The time limit enters into the evaluation of the degree of difficulty of these problems- at the end. Fifty-six per cent, of the eighth grade'solved 32 of the 36 problems, with no one getting the last, one."

Discussion¶

Related Claims¶

• The Organization Test exercises were scaled on 1634 children in grades three to eight, yielding difficulty values from .03 to 6.4 units — a broader claim this one bears on
• Problems whose per cents solved do not increase monotonically across grades are eliminated as not measuring grade-to-grade progress — related