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Table 2 Multi-variate regression analysis for the explanation of item difficulty

From: Physical-technical prior competencies of engineering students

Variable Category β p
Requirement level Reproduction Ref
Establishing of connections .44 .05
Generalization and reflection .56 <.05
Type of knowledge Declarative Ref
Procedural .40 .05
Sketch No Ref
Yes .34 .07
Units No Ref
Yes -.31 .09
Mathematics No Ref
Yes .27 .21
Model F (6;14) = 5.022 <.01