Quadratic and Linear Conceptual Evaluation (QLCE)

Developed by Ron Thornton, Priscilla Laws, and Pat Cooney

Purpose To measure students’ understanding of equations (liner and quadratic) as functional relationships. Pre/post, Multiple-choice, Multiple-response 30 min Mathematics Content knowledge (graphing, mathematical modeling) Intro college, High school

Sample questions from the QLCE:

QLCE Implementation and Troubleshooting Guide

Everything you need to know about implementing the QLCE in your class.

R. Thornton, Measuring and Improving Student Mathematical Skills for Modeling, presented at the GIREP Conference 2006: Modeling in Physics and Physics Education, Amsterdam, Netherlands, 2006.
RESEARCH VALIDATION
more details
Bronze Validation
This is the third highest level of research validation, corresponding to at least 3 of the validation categories below.

### Research Validation Summary

#### Based on Research Into:

• Student thinking

#### Studied Using:

• Student interviews
• Expert review
• Appropriate statistical analysis

#### Research Conducted:

• At multiple institutions
• By multiple research groups
• Peer-reviewed publication

The questions on the QLCE are based on research into student thinking about quadratic and linear equations. It has been administered at multiple institutions and results are published in one paper.

### References

We don't have any translations of this assessment yet.

Typical Results

Results from the QLCE have not yet been published.

The latest version of the QLCE, released in 2012, is version 1. This test is an updated and improved version of the Mathematical Modeling Conceptual Evaluation I (MMCE-I), which is not to be confused with the MMCE-II that involves vectors.  The original test included some errors, some unvalidated questions, and also a question that was found to be nearly impossible for students to answer correctly, leading to the development of the QLCE, which is the same test with these problems excluded and some of the remaining problems reworded. The MMCE-I is included on the CD included with the "Teaching Physics with the Physics Suite" book, but the writers of the test have indicated that this test should not be used and should be replaced with the QLCE.

### Variation

#### Mathematical Modeling Conceptual Evaluation

Content knowledge Mathematics
Intro college, High school
Pre/post, Multiple-choice, Multiple-response