# Wilhelm & Kim (2015)

*Generalizing From Observations of Mathematics Teachers' Instructional Practice Using the Instructional Quality Assessment*

- Authors: Anne Garrison Wilhelm and Sungyeun Kim
- Journal: Journal for Research in Mathematics Education
- Year: 2015
- Source: http://www.nctm.org/Publications/Journal-for-Research-in-Mathematics-Education/2015/Vol46/Issue3/Generalizing-From-Observations-of-Mathematics-Teachers\_-Instructional-Practice-Using-the-Instructional-Quality-Assessment/

## Abstract

One crucial question for researchers who study teachers' classroom practice is how to maximize information about what is happening in classrooms while minimizing costs. This report extends prior studies of the reliability of the Instructional Quality Assessment (IQA), a widely used classroom observation toolkit, and offers insight into the often asked question: "What is the number of observations required to reliably measure a teacher's instructional practice using the IQA?" We found that in some situations, as few as three observations are needed to reliably measure a teacher's instructional practice using the IQA. However, that result depends on a variety of other factors.

## Corrolary

- APA
- Wilhelm, A. G., & Kim, S. (2015). Generalizing from observations of mathematics teachers' instructional practice using the instructional quality assessment.
*Journal for Research in Mathematics Education*, 46(3), 270–279. - BibTeX

@article{Wilhelm2015, author = {Wilhelm, Anne Garrison and Kim, Sungyeun}, journal = {Journal for Research in Mathematics Education}, keywords = {generalizability,observation,reliability}, number = {3}, pages = {270--279}, title = {{Generalizing from observations of mathematics teachers' instructional practice using the instructional quality assessment}}, url = {http://www.nctm.org/Publications/Journal-for-Research-in-Mathematics-Education/2015/Vol46/Issue3/Generalizing-From-Observations-of-Mathematics-Teachers\_-Instructional-Practice-Using-the-Instructional-Quality-Assessment/}, volume = {46}, year = {2015} }