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Collection and Analysis of Data
CPH 608Spring 2015
Collecting Data
What is data collection?
• “A process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes”
- The Office of Research Integrity, US DHHS
Let’s make it simple…
• Collecting data involves– gathering information based on your research
hypothesis and study design – recording information in an appropriate way, and– organizing information to answer the research
hypothesis.
• Observation• Interviews• Focus Group Discussions• Testing• Surveys• Recordings • and so on…
Survey
Method or Tool?
• A method of selecting relatively large sample of subjects from a study population, proceeded by collection of a relatively small amount of data from those subjects.
- International J for Quality in Health Care 2003: 15 (3), pp. 261-266
Survey Approach
• Face-to-Face interviews• Telephone interviews• Postal questionnaires• Online questionnaires
-Qualtrics- Survey Monkey- REDCap- SurveyGizmo- kwiksurveys- SoGoSurvey- ...
REDCap
• Research Electronic Data Capture• Created by Vanderbilt University in 2004 and supported by
a consortium of 1,324 institutions in 88 countries (as of January 28, 2015)
• Intuitively designed• Secure on any device having internet access• Robust and Flexible• New features are developed and released regularly• You, as the user, has full control over your project: defining,
displaying, and storing data, and modifying, and collaborating your project.
REDCap is growing
Total users: 206,736 and increasing
Map of REDCap Consortium Partners
Create a Project
• Research Question: To study about local public health delivery system and how they how they evolve over time.
• Study population– Local health jurisdictions
• Variables of interests:– Demographic variables– Public Health Activities in the community– Overall assessment of local public health system– Overall assessment of population health
Request REDCap Account:https://redcap.uky.edu/redcap/surveys/?s=wqsDEW
Enable any instrument as a survey and then collect data for that instrument from survey respondents via a public survey link or unique survey link emailed to each participant.
Descriptive Text
Checkboxes (Multiple answers)
Multiple Choice – Radio Buttons (Single answer)
Yes-No
Branching logics
Record Status
Data Export
learndataanalysis.wordpress.com
Analysis
"What gets measured gets done." —Anonymous