Levels of Conceptual Understanding in Statistics (LOCUS) Assessments

LOCUS is a research-backed system offering a valuable look at students’ statistical understanding and how that understanding may translate to performance on the AP Statistics exam.

This material was reviewed and endorsed by the Joint ASA/NCTM Committee on Curriculum in Statistics and Probability.

Teachers have found that students who score 70% or higher on LOCUS also score 3 or higher on the AP Statistics Exam.

First piloted in 2013, LOCUS assessments were designed by university researchers and professors to provide teachers, educational leaders, assessment specialists, and researchers with a valid and reliable assessment of conceptual understanding in statistics. Many of the LOCUS developers were also involved in the development of the AP Statistics exam.

Today, LOCUS can be used by both teachers and individual students to assess statistical knowledge and as a reliable predictor of AP Statistics exam scores.

Levels of Conceptual Understanding in Statistics (LOCUS) Assessments

Today, LOCUS can be used by both teachers and individual students to assess statistical knowledge and as a reliable predictor of AP Statistics exam scores.

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