pr13 - ByMoonJ.Lee,Ph.D AssociateProfessor...

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By Moon J. Lee, Ph.D. Associate Professor Public Relations Department
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Focus Group, In-depth Interview, Field Observation Survey, Census, Content Analysis Longitudinal Studies – Panel vs. Trend Studies Panel Studies – the systematic surveys of the same  individuals over an extended period of time Trend Studies – surveying different respondents in a  series of surveys over time. Experimental Design
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To measure the Impact of a treatment (a PR program or  campaign) To test causal relationships between two factors Three conditions for establishing a causal relationship between A  and B External Validity vs. Internal Validity External validity is the generalizability of the study Internal validity is the truth of conclusions reached from a study in  terms of causes and effects.
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Pre experimental designs (e.g. one-shot case study 
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pr13 - ByMoonJ.Lee,Ph.D AssociateProfessor...

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