About the influence of interblock variation on growth curve estimators obtained by Potthoff–Roy's method

Rok, strany: 2003, 247 - 254

The objective of this paper is an attempt at a theoretical solution of the problem of the influence of block structure in the experimental material in Potthoff–Roy's method of estimation of growth curves. Due to the presence of matrix $T$ in the model, the estimators of the coefficients in the fitted polynomials, calculated with and without block effects in the model, are, generally, different. The scholarly considerations have not yet yielded a unique solution. It has only been established that the differences between estimators of coefficients depend on respective covariance matrices and their difference $G$. The condition of block effects insignificance in growth curve model is shown, too.

ISO 690:

Wesołowska-Janczarek, M. 2003. About the influence of interblock variation on growth curve estimators obtained by Potthoff–Roy's method. In Tatra Mountains Mathematical Publications, vol. 26, no.2, pp. 247-254. 1210-3195.

APA:

Wesołowska-Janczarek, M. (2003). About the influence of interblock variation on growth curve estimators obtained by Potthoff–Roy's method. Tatra Mountains Mathematical Publications, 26(2), 247-254. 1210-3195.