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Data Management Services
Decision Analyst codes open-end questions in more than 30 different languages, provides sophisticated cross-tabulation reports, including statistical significance
testing and analysis. Advanced software and systems, rigorous quality assurance processes, and experienced professional tabulation programmers produce consistently
accurate cross-tabs. No cross-tab task is too large or too complicated for Decision Analyst programmers.
Questionnaire Design and Guidance
Decision Analyst can provide assistance with questionnaire design before data collection begins. This is especially important for studies requiring market segmentation,
choice modeling, or other advanced statistical techniques.
Our highly experienced Coding Department codes in 12 different languages, plus another 20 languages through partners in the respective countries. Open-end survey
questions can be coded, as well as CRM comments and any type of text.
For large datafiles (as from social media, CRM systems, etc.) text analytics software is an option. Software is not as accurate as the human mind but may be
good enough in some instances. We generally recommend taking a subset of the data and having humans do the coding, to compare to the software coding results.
For paper surveys or documents, all survey responses are entered twice, to create two mirror datafiles (i.e., 100% verification). These two datafiles are
matched and any differences resolved by checking the source documents. Guaranteed accuracy rate is 99.95%.
Data Cleaning
Before any datafile is tabulated, a series of data cleaning checks are performed, to check for out-of-range codes, duplicate records, skip logic errors, omissions, etc.
Multiple Databases
Data from multiple data sources can be combined into one integrated database, and then cross-tabbed and analyzed.
Decision Analyst Tabulation experts use sophisticated software and systems to produce powerful cross-tabs and summaries, including algebraic models for scoring
and analysis. Significance testing can be applied to columns and rows of tabulated results, and complex weighting schemes can be applied to the data.
With experience on databases ranging in size to several terabytes, Decision Analyst's Predictive Analytics Team has the experience and know-how to design and
manage data warehouses of virtually any size and complexity.
Many different types of mathematical tests and analyses can be conducted on the data, such as:
- Correlation analysis
- Significance testing, z- & t-tests
- ANOVA/MANOVA
- Cluster analysis
- Factor analysis
- Multiple regression
- Discrete choice modeling, choice modeling
- Market segmentation
Survey Management and Data Processing Experience
Decision Analyst is a leading global marketing research and analytical consulting firm with over three decades of experience in processing and tabulating a multitude
of studies from simple questionnaires to multi-country advanced analytic projects.
Data Management Services
If you need a cost estimate for a Data Management Services, please contact
Lisa Hazen (lhazen@decisionanalyst.com)
or call 1-800-ANALYSIS (262-5974) or 1-817-640-6166.
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