Percentage of pupils making each error runs surprisingly close across the three test forms¶

Claim · All claims
Evidence · 1 study · design r2 · q2
Currency · newest study 1922 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? For grades III, VI, and X, the median percentages of pupils making each error in each test run surprisingly close together across the three forms. → Wilson 1922

Evidence¶

Wilson 1922¶

Wilson, G. M. (1922). Language error tests. Journal of Educational Psychology, 13(6), 341–349. doi:10.1037/h0064444

q2 · i? · design · r2

Item-level analysis across forms: error-by-error percentages were computed for grades III, VI, and X, and "The median percentages for the different grades run surprisingly close together", offered as further evidence of equality.

"The percentage of pupils in Grades III, VI, and X making each error in each test was figured. The median percentages for the different grades run surprisingly close together."

Discussion¶

Related Claims¶

• The three Wilson Language Error Tests (A, B, and C) approach equality across grades III to XII — possibly the same claim (merge candidate)
• Twelve-year-old pupils score a median of 23 on all three test forms — a narrower finding that bears on this claim
• Tests B and C correlate 0.901 when given to the same pupils in grades III to VIII — related