Reach is the proportion of a specified television audience or universe who have been contacted by an advert at least once. Reactive Bias is a type of experimental error where participants in an experiment change their normal behaviour as a direct result of the experimental conditions. Recall Test is a type of post-test that investigates respondents' ability to recall the advertising unaided and aided. Recommendations are suggested courses of action or an assessment of the relative strengths and weaknesses of particular courses of action. Reconvened Group Discussion refers to two group discussions with the same participants that are separated by a period of time.
Recruiter is the person who locates and invites selected participants to attend group discussions.
Refusal Rate is the percentage of contacted people who decline to co-operate with the research study. Regression Analysis is the analysis of the relationship between a dependent variable and one or more independent variables. Its purpose is to determine whether a relationship exists and the strength of the relationship. It is also used to determine the mathematical relationship between the variables, predict the values of the dependent variable and control other independent variables when evaluating the effect of one or more independent variables. Representative Sample is a sample that contains units in the same proportion as the population of interest.