Coding Frame sees codebook.
Coding is the organizing of responses into categories and the assignment of a unique numerical code to each response prior to data entry.
Code of Conduct (or Ethics) all professional marketing research societies have a code of conduct that details the rights and responsibilities of those involved with marketing and opinion research.
Code Book (aka Coding Frame) is a set of instructions regarding the allocation of codes to research data. It helps researchers identify and locate the variables to be used in data analysis.
Code and Tab Plan (aka Tab Plan) is a plan that details the column and row headings in the cross-tabulations that are produced from the data.
Cluster Sampling is a type of probability sampling where a population of interest is divided into mutually exclusive and collectively exhaustive sub-groups (or clusters) and a sample of clusters is selected. From the selected clusters, a sample of units is drawn.
Cluster Analysis is an analytical technique that arranges research data into mutually exclusive and collectively exhaustive groups (or clusters) where the contents of each cluster are similar to each other but different from the other clusters in the analysis.
Closed-ended Questions provide respondents with a pre-determined list of possible answers.
Central Location Interviewing is when face-to-face interviews are conducted at one or more specified locations (eg. mall intercept interviewing).
Census is the collection of data from all available units in a population of interest.