A Successive Differences Method for Growth Curves with Missing Data and Random Observation Times
缺失数据与随机观测时点下增长曲线的相邻差分法
Incomplete growth curve data can be analyzed by the successive differences (SD) method, which uses the difference in consecutive pairs of observations for all subjects having two or more repeated measures. We have generalized it to handle varying observation times as well by partitioning the time interval spanned by all repeated measures into subintervals. The model is developed, including test statistics for the hypotheses of parallelism and of no change in response level…