Judith T. Lessler

Subjects

Data Collection, Methods, Questionnaires, Research Design, Survey-onderzoek, Calcul d'erreur, Cognition, Drug Users, Drug abuse, Drug abuse surveys, Enquetes sociales, Epidemiology, Error analysis (Mathematics), Experimental Psychology, Follow-Up Studies, Foutenleer, Health surveys, Laboratories, Leves, Mathematical Computing, Methodes statistiques, Methodologie, Methodology, Recherche, Research