The level determination exam (DBS) used to check prior knowledge showed high internal consistency (0.822)¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2021: tool and model accuracy changes quickly

Subclaims¶

q2 i? The 23-item DBS test had an internal consistency coefficient of 0.822 and was considered highly reliable. → Seval Deniz KILIÇ & Hüseyin ALKAN 2018

Evidence¶

Seval Deniz KILIÇ & Hüseyin ALKAN 2018¶

Seval Deniz KILIÇ & Hüseyin ALKAN. (2018). The Effects of Activities and Approachments Intended Performance Improvement on the Students' Performances in Mathematics. Journal of Education and Learning, 7(5). https://doi.org/10.5539/jel.v7n5p146

q2 · i? · causal · r2

The DBS was piloted on 150 students in the 2009-2010 school year; low-reliability questions were excluded, yielding a 23-item test with internal consistency of 0.822, later reduced to 21 items after two probability and statistics questions were discarded.

"Thus, the test consisting of 23 questions with high reliability was formed. The internal consistency coefficient of the test was found to be 0.822. As a result, the test was considered to be highly reliable"

Discussion¶

Related Claims¶

• A high Cronbach's alpha across items measuring distinct knowledge aspects indicates the test is not working as intended — related
• The Statistical Reasoning Assessment instrument showed acceptable internal consistency (Cronbach alpha .82) in a 30-subject pilot study — related
• The researcher-built two-stage Mixtures Achievement Test showed high reliability in the pilot and research groups — related
• The exam instrument showed acceptable reliability with a Cronbach coefficient of 0.82 — related