HLTH230 Lecture 1

HLTH230 Lecture 1 - ResearchMethods:HLTH230Feb.3,2011

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Research Methods:  HLTH 230                                     Feb. 3, 2011 Quantitative Methods : refers to the systematic empirical investigation of  phenomena to be studied numerically.  Between groups design      (compare group A and B): cross-sectional (one  point in time), longitudinal (over span of time) – cross-sec. is easier to  do and less expansive BUT longitudinal yields better results  Within groups design      (differences within the same group) : pre-post  (don’t know what being tested for then some type of intervention  happens then retested), repeated measures  Direct Observation      (watching it happen): casual (watching people),  formal (looking for a purpose/objective – take data for formal research),  participant observation (researcher participates and participants  consent to being watched) Interviews      – structured or semi-structured: pre-prepared set of  questions : objectives, type of respondents, type of 
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This note was uploaded on 02/15/2011 for the course HLTH 230 taught by Professor Staff during the Spring '08 term at Maryland.

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HLTH230 Lecture 1 - ResearchMethods:HLTH230Feb.3,2011

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