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Table 6 Distribution of items across taxa for two theoretical constructs related to the structure of students’ evolutionary knowledge

From: Measuring undergraduate evolution learning using the CANS: psychometric strengths and limitations

 

Plant

Animal

Concept Category

Evolution

✓ (2 items)

✓ (6 items)

Mutation

✓ (1 item)

✓ (3 items)

Inheritance

x (0 items)

✓ (4 items)

Selection

✓ (2 items)

✓ (3 items)

Variation

✓ (1 item)

✓ (2 items)

Trait Polarity

Trait Gain

✓ (1 item)

✓ (2 items)

Trait Loss

x (0 items)

✓ (2 items)

  1. Anteater, bowhead whale, and mosquito were classified into ‘animal’ whereas saguaro cacti was classified under ‘plant.’ Bold text indicates there were no items for the construct within the taxon