Shuji Tajima, Atsuko Araki, Toshio Kawai, Tazuru Tsuboi, Yu Ait Bamai, Eiji Yoshioka, Ayako Kanazawa, Shi Cong, Reiko Kishi
Detection and intake assessment of organophosphate flame retardants in house dust in Japanese dwellings
The Science of the total environment
analyzing complex longitudinal data especially data different educational settings researchers generally focus mean part ie regression coefficients ignoring equally important random part ie random effect variances model using project english language literacy acquisition ella data demonstrated importance taking complex data structure account carefully specifying random part model showing affect variance estimates standard errors tests significance regression coefficients also offer different perspectives data information related developmental process used xxm mehta 2013 flexibly estimate different gradelevel variances separately potential carryover effect grade factor later time measures implications findings limitations study discussed