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Related Experiment Video

Updated: Jun 3, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Inference is bliss: using evolutionary relationship to guide categorical inferences.

Laura R Novick¹, Kefyn M Catley, Daniel J Funk

¹Department of Psychology and Human Development, Vanderbilt University, Nashville, TN 37203-5721, USA. laura.novick@vanderbilt.edu

Cognitive Science

|April 6, 2011

Summary

Students struggle with evolutionary relationships, often misidentifying common traits. Providing evolutionary diagrams (cladograms) helps, but only if students have a foundational biology background.

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Area of Science:

Evolutionary Biology
Life Science Education

Background:

Understanding evolutionary relationships is crucial for biological literacy.
Prior knowledge and misconceptions influence how individuals interpret evolutionary evidence.

Purpose of the Study:

To investigate how individuals infer biological traits based on evolutionary relatedness.
To examine the impact of evolutionary diagrams (cladograms) on these inferences.

Main Methods:

Three experiments were conducted with college students and 10th graders.
Participants were presented with hypothetical taxa and enzyme functions, inferring relationships.
Some participants received cladograms illustrating evolutionary connections.

Main Results:

Inferences about shared enzymes were influenced by perceived evolutionary relatedness.
The effectiveness of cladograms in correcting misconceptions depended on students' existing biology knowledge.
Students demonstrated misconceptions about common taxa and were sometimes resistant to overriding faulty knowledge.

Conclusions:

Student understanding of evolutionary principles and tree thinking is variable.
Educational interventions should consider students' background knowledge when introducing evolutionary concepts.
Curricula can be improved by integrating tree thinking to enhance biological reasoning.