Hypothesis specificity differed by task type: intermediate participants stated fewer partially-specified hypotheses than abstract participants, but more fully-specified hypotheses than concrete participants¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i2 medium
Currency · newest study 2009 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Intermediate participants had a lower percentage of partially-specified hypotheses than abstract participants (r = .32), while concrete and intermediate did not differ significantly (p = .07). → Ard W. Lazonder 2009 q3 i2 Concrete participants had a lower percentage of fully-specified hypotheses than intermediate participants (r = .28); intermediate and abstract did not differ significantly (p = .06). → Ard W. Lazonder 2009 (2)

Evidence¶

Ard W. Lazonder 2009¶

Ard W. Lazonder, Pascal Wilhelm, Emiel van Lieburg. (2009). Unraveling the influence of domain knowledge during simulation-based inquiry learning. Instr Sci, 37, 437-451. https://doi.org/10.1007/s11251-008-9055-8

q3 · i2 · causal · r2

In the randomized experiment, a MANOVA on hypotheses was significant (F(4,104) = 4.40, p < .01). For partially-specified hypotheses, intermediate participants (M = 60.36%) scored above abstract participants (M = 34.52%), "t(52) = 2.45, p\ .05, r = .32".

"Planned contrasts revealed that participants in the concrete and intermediate condition had comparable percentages of partially-specified hypotheses ( t(52) = 1.85, p = .07), whereas intermediate participants had a lower percentage of partially-specified hypotheses than participants in the abstract condition (t(52) = 2.45, p\ .05, r = .32)."

Ard W. Lazonder 2009 (2)¶

Ard W. Lazonder, Pascal Wilhelm, Emiel van Lieburg. (2009). Unraveling the influence of domain knowledge during simulation-based inquiry learning. Instr Sci, 37, 437-451. https://doi.org/10.1007/s11251-008-9055-8

q3 · i2 · causal · r2

Same experiment: fully-specified hypothesis percentages were 14.25% (concrete), 35.50% (intermediate), 54.64% (abstract); concrete was significantly lower than intermediate, "t(52) = 2.08, p\ .05, r = .28".

"For fully-specified hypotheses this pattern in scores was reversed, with a lower percentage of hypotheses in the concrete condition compared to the intermediate condition (t(52) = 2.08, p\ .05, r = .28), and a nonsignificant difference among the intermediate and abstract condition (t(52) = 1.90, p = .06)."

Discussion¶

Related Claims¶

• Learners have a strong natural tendency to induce a rationale from discovered relations, which can evoke erroneous hypotheses about undiscovered relations and reduce inquiry success — related
• Task type did not affect time on task, number of unique experiments, duplicated experiments, or percentage of unspecified hypotheses — reports the opposite
• Concrete-task participants conducted a significantly lower percentage of exploratory experiments than intermediate-task participants, whose exploratory percentage matched the abstract condition — related