Eileen M. VanAken and Brian M. Kleiner, professors at Virginia Polytechnic Institute and State University, investigated the factors that contribute to the effectiveness of teams. (Data extracted from "Determinants of Effectiveness for Cross- Functional Organizational Design Teams," Quality Management Journal, 4 (1997), 51-79.) The researchers studied 34 independent variables, such as team skills, diversity, meeting frequency, and clarity in expectations. For each of the teams studied, each of the variables was given a value of 1 through 100, based on the results of interviews and survey data, where 100 represents the highest rating. The dependent variable, team performance, was also given a value of 1 through 100, with 100 representing the highest rating. Many different regression models were explored, including the following:
Model 1
Team performance = β0 + β1 (Team skills) + ε

Model
Team performance = β0 + β1 (Clarity in expectations) + ε

Model 3
Team performance = β0 + β1 (Clarity in expectations)
+ β2 (Clarity in expectations) + ε

a. Interpret the adjusted r2 for each of the three models.
b. Which of these three models do you think is the best predictor of team performance?

Transcribed Image Text:

adj 0.68 radj = 0.78 radi = 0.97