Bailey J E, Voorhees L I, Hanlon S
Am J Optom Physiol Opt. 1983 May;60(5):399-404. doi: 10.1097/00006324-198305000-00010.
Preoptometry grades. Optometry College Admission Test (OCAT) scores, and a number of other variables were evaluated as predictors of the grade point average earned by optometry students (N = 494) after two years at Southern California College of Optomery. The OCAT Quantitative Ability test was found to be the best single predictor (r = +0.37). This prediction was enhanced (multiple r = +0.55) with the addition of the OCAT Study Reading test score, preoptometry grade point average in college mathematics and science courses, and a rating of the preoptometry college attended. A predicted grade point average for optometry school courses was computed for each student by additively combining these variables, weighted according to their relative predictive validities. By comparing the computed values of students who actually earned a high grade point average in optometry school with those whose average was low, we were able to establish a predicted grade point cutoff score. It is shown that this can be useful in evaluating the potential of an applicant to achieve academic success in optometry school.
验光预科成绩、验光学院入学考试（OCAT）分数以及其他一些变量被评估为南加州验光学院两年后验光专业学生（N = 494）平均绩点的预测指标。结果发现，OCAT定量能力测试是最佳的单一预测指标（r = +0.37）。加入OCAT学习阅读测试分数、验光预科阶段大学数学和科学课程的平均绩点以及所就读的验光预科院校的评级后，这一预测得到了增强（复相关系数r = +0.55）。通过根据这些变量的相对预测效度进行加权，将这些变量相加组合，为每个学生计算出验光学校课程的预测平均绩点。通过比较在验光学校实际取得高平均绩点的学生与平均绩点低的学生的计算值，我们能够确定一个预测平均绩点的截止分数。结果表明，这在评估申请者在验光学校取得学业成功的潜力方面可能会很有用。
