Most students solved BioWorld cases, and successful solvers took less time and fewer actions than unsuccessful solvers¶

Claim · All claims
Evidence · 1 study (2 entries) · design r2 · q3
Currency · newest study 2001 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? 90% of participating students solved the problems. → Lajoie 2001 q3 i? Accurate diagnosers took less time and needed fewer actions than students who did not make an accurate diagnosis. → Lajoie 2001 (2)

Evidence¶

Lajoie 2001¶

Lajoie, S. P., Lavigne, N. C., Guerrera, C., & Munsie, S. D. (2001). Constructing knowledge in the context of BioWorld. Instructional Science, 29(2), 155-186. http://www.jstor.org/stable/41953546

q3 · i? · design · r2

Conclusions section reporting the diagnostic accuracy measure across the 40 grade-9 participants: 90% solved the BioWorld problems, which the authors call high given that disease problem solving was new to them. No effect size is printed.

"In fact, 90% of the students who participated in this study solved the problems."

Lajoie 2001 (2)¶

Lajoie, S. P., Lavigne, N. C., Guerrera, C., & Munsie, S. D. (2001). Constructing knowledge in the context of BioWorld. Instructional Science, 29(2), 155-186. http://www.jstor.org/stable/41953546

q3 · i? · design · r2

Comparison of successful versus less successful solvers in the computer-trace data: accurate diagnosers took less time and needed fewer actions, indicating different search strategies. No test statistic or effect size is printed for this contrast.

"Students who learned to reason scientifically with BioWorld did so in an efficient manner, taking less time, and needing fewer actions than students who did not make an accurate diagnosis."

Discussion¶

Related Claims¶

• In BioWorld, expert-like initial problem representation and library use correlate with expert-like evidence collection and diagnostic-test ordering — related
• Successful and unsuccessful complex problem solvers differ in transition frequencies between questions and decisions — related
• Grade-9 students using BioWorld significantly increased their confidence in their diagnosis from initial to final hypothesis — related