The research community and sample are typically determined through a process of sampling, which involves selecting a specific group or subset of the population that can provide representative information and insights into the research question being investigated. The size and composition of the sample are determined by a range of factors, including the research aims, the available resources, time constraints, and statistical considerations, such as the required level of confidence and precision. While as scientific percentages, such as prevalence rates or response rates, are determined based on the sample size and composition, as well as the nature of the phenomenon being investigated. Statistical methods are used to estimate percentages with a certain level of confidence and margin of error, which are influenced by the size and representativeness of the sample.