session 5 cross sectional longitudinal approaches health systems research course western china school of public health 7 11 december 2015 four key steps in hsr 1 idenbfy research focus problem ...
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...Session cross sectional longitudinal approaches health systems research course western china school of public december four key steps in hsr idenbfy focus problem concern opportunity and quesbon design study ensure quality rigour apply ethical principles most frequently used hpsr to explore describe or explain a phenomenon at parbcular bme does not examine change over assess intervenbons allows observabon measurement mulbple variables same comparison groups populabons specic point may establish correlabons relabonships between encompasses range disciplinary perspecbves definition hups translate google co uk auto en secbon...