Chin, Wynne W., Barbara L. Marcolin, and Peter R. Newsted (2003), "A Partial Least Squares Latent Variable Modeling Approach for Measuring Interaction Effects: Results from a Monte Carlo Simulation Study and an Electronic-Mail Emotion/Adoption Study", Information Systems Research, 14, 189-217.
- The degree to which a system is perceived to enhance one's performance.
Using Electronic Mail in my job enables (would enable) me to accomplish tasks more quickly.
Using Electronic Mail improves (would improve) my job performance.
Using Electronic Mail in my job increases (would increase) my productivity.
Using Electronic Mail enhances (would enhance) my effectiveness on the job.
Using Electronic Mail makes it (would make it)easier to do my job.
I find (would find) Electronic Mail useful in my job.