TY - BOOK AU - Jordan, A B TI - Media messages and public health : a decisions approach to content analysis T2 - Communication series SN - 0805860258 PY - 2009/// CY - New York; London PB - Routledge N2 - This book provides an introduction to using content analysis to study messages and behaviours related to public health. Topics include: defining and measuring key content variables, sampling and content analysis, reliability, research ethics. The challenges faced by content analysis researchers are illustrated through a range of case studies that exemplify how to link research and practice ER -