Teachers scored across a wide range on the CT–PCK Survey, averaging about 61 percent correct, with 92 percent scoring above chance¶

Claim · All claims
Evidence · 1 study · design r3 · q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Raw scores ranged from 1 to 16 correct; on average teachers answered about 10 of 16 items correctly (61 percent), 76 percent answered at least half correctly, and 92 percent scored above the 25 percent guessing threshold. → Witherspoon 2026

Evidence¶

Witherspoon 2026¶

Witherspoon, E.B.; Dracopoli, M., Hawkins, M., Dahlke, K. (2026). Developing a measure of middle school math teachers' pedagogical content knowledge of computational thinking (REL 2026–007). U.S. Department of Education, Institute of Education Sciences, National Center for Education Evaluation and Regional Assistance. https://ies.ed.gov/use-work/resource-library/report/descriptive-study/developing-measure-middle-school-math-teachers-pedagogical-content-knowledge-computational-thinking

q2 · i? · design · r3

Descriptive analysis of 102 teachers' responses (figure 1, mean = 9.7). Scores ranged from 6 percent to 100 percent correct; "92 percent of teachers scored above the level that could have been achieved through pure chance," suggesting responses were not random. Rasch analysis showed a 25th-percentile teacher would likely answer 6 items correctly and a 75th-percentile teacher all 16.

"On average, teachers selected the correct response on approximately 10 of the 16 items (61 percent correct) (figure 1). Most teachers (76 percent) identified the correct response on at least half of the 16 items"

Discussion¶

Related Claims¶

• The 16-item CT–PCK Survey measures CT pedagogical content knowledge for math as a single overall construct — a broader claim this one bears on
• Content experts and practitioner reviews supported the content and face validity of the CT–PCK Survey — related
• The 16-item CT–PCK Survey shows internal consistency reliability around .71–.72 and person separation reliability of .69 — related
• The overall CT–PCK Survey functioned similarly across teacher characteristic groups, though some items showed raw differential item functioning above 0.64 logits — related
• Teachers who were White, female, or had five or more years of experience scored about 14 percentage points higher; emergency-certified teachers scored 14 points lower — related