Market research companies that specialize in data tabulation services. See providers of services to sum question responses by total sample. Cross tabulations follow where responses to each questions are summed by sub-samples to determine their relationship to the total sample and each other.
Standard Deviation and Standard Error are perhaps the two least understood statistics commonly shown in data tables. The following article is intended to explain their meaning and provide additional insight on how they are used in data analysis.
This article provides a summary of the basic descriptive statistics typically shown in crosstabs and other survey data analyses. Included are the basic measures with which all researchers should be comfortable.
Simply put, bad information begets bad decisions. Using inaccurate data as an information source puts you at risk for making the wrong decision. The importance of data verification is fundamental to all business and scientific practices, and has been the subject of many conferences and discussion groups. Yes Virginia, paper surveys are still alive and verification practices are an integral part of assuring high quality data capture.