## Examining Opposites

When exact opposites divide a construct into two parts, each variable is 0 when the other is positive: They do not correlate -1. We have created a method of estimating the correlation between the two constructs when each of their measures may not cover all parts of those constructs. This method was described in our 2020 presentation:

Barchard, K. A., & Russell, J. A. (2020, June 1 – September 1). *I’m less and less happy until finally I’m sad: Estimating correlations when variables divide a construct into parts.* Poster presented at the Association for Psychological Science poster showcase, Chicago, IL. Poster Handout

To implement this method, use one of the following Excel sheets.

**Small file, fast download: ** Barchard, K. A. (2020, May).* Estimating rho(X,Y) when x and y cover arbitrary portions of X and Y (n = 10,000).* Unplublished Excel sheet. Available at

**More accurate results:** Barchard, K. A. (2020, May)* Estimating rho(X,Y) when x and y cover arbitrary portions of X and Y (n = 500,000). *Unplublished Excel sheet. Available at