Delineating the Average Rate of Change in Longitudinal Models
نویسندگان
چکیده
منابع مشابه
Delineating the Average Rate of Change in Longitudinal Models
The average rate of change is a concept that has been misunderstood in the literature. This article attempts to clarify the concept and show unequivocally the mathematical definition and meaning of the average rate of change in longitudinal models. The slope from the straight-line change model has at times been interpreted as if it were always the average rate of change. It is shown, however, t...
متن کاملThe Average Rate of Change 1 Running head: THE AVERAGE RATE OF CHANGE Delineating the Average Rate of Change in Longitudinal Models
The average rate of change is a concept that has been misunderstood in the literature. The present article attempts to clarify the concept and show unequivocally the mathematical definition and meaning of the average rate of change in longitudinal models. The slope from the straight-line change model has at times been interpreted as if it were always the average rate of change. It is shown, how...
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The average rate of change (ARC) is a concept that has been misunderstood in the applied longitudinal data analysis literature, where the slope from the straight-line change model is often thought of as though it were the ARC. The present article clarifies the concept of ARC and shows unequivocally the mathematical definition and meaning of ARC when measurement is continuous across time. It is ...
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ژورنال
عنوان ژورنال: Journal of Educational and Behavioral Statistics
سال: 2008
ISSN: 1076-9986,1935-1054
DOI: 10.3102/1076998607306074