The 20-item attitude towards statistics scale showed acceptable Rasch fit and reliability, supporting a unidimensional construct¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? All 20 items fit the Rasch model (zstd between -2 and 2), with person separation 2.00, person reliability .80, item reliability .84 and Cronbach alpha .85. → Koparan 2014

Evidence¶

Koparan 2014¶

Koparan, T., & Güven, B. (2014). The Effect on the 8th Grade Students' Attitude towards Statistics of Project Based Learning. European Journal of Educational Research, 3(2), 73-85. https://eric.ed.gov/?id=EJ1086040

q2 · i? · causal · r1

Rasch rating-scale analysis (Winsteps 3.72) of 70 students' responses to the 20-item ATS. The article reports person separation 2.00, reliability .80, item reliability .84, and "CRONBACH ALPHA (KR-20) ... = .85", indicating items measured a single unidimensional construct.

"All items fit the expectations of the Rasch model. In other words, all items had zstd infit and/or outfit statistics between -2 and 2 (Table 1)."

Discussion¶

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