Sökning: "Maria Josefsson"

Hittade 1 avhandling innehållade orden Maria Josefsson.

  1. 1. Attrition in Studies of Cognitive Aging

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Maria Josefsson; Umeå universitet.; [2013]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Attrition; missing data; age-related cognitive change; non- ignorable dropout; monotone missing pattern; mixture models; pattern- mixture models; imputation; Statistics; statistik;

    Sammanfattning : Longitudinal studies of cognition are preferred to cross-sectional stud- ies, since they offer a direct assessment of age-related cognitive change (within-person change). Statistical methods for analyzing age-related change are widely available. LÄS MER