The lower division grade point averages and scores on the Florida Twelfth Grade Testing Program for 1221 students from 17 Florida junior colleges, and 25 operationally defined institutional variables (including general characteristics, institutional indexes of faculty load, curricular characteristics, physical plant, and fiscal characteristics) of the 17 junior colleges were analyzed by means of a linear regression technique to determine to what extent these variables account for the variance in the first trimester performance of students transferring to one of the four Florida State Universities after a minimum of 60 junior college units. A total of 92 linear regression equations were computed, yielding multiple correlation coefficients, coefficients of determination (variance), and an "F" test for various combinations of the predictor variables. It was concluded that lower division grade point averages and scores from the Florida Twelfth Grade Testing Program were significant predictors of upper division grades, but the 25 institutional variables were not. (MC)