AP PSYCHOLOGY

Detailed explanation-1: -The sample frame is the group of individuals that can be selected from the target population given the sampling process used in the study.

Detailed explanation-2: -Ideally, a sample should be randomly selected and representative of the population. Using probability sampling methods (such as simple random sampling or stratified sampling) reduces the risk of sampling bias and enhances both internal and external validity.

Detailed explanation-3: -A representative sample is a subset of a population that seeks to accurately reflect the characteristics of the larger group. For example, a classroom of 30 students with 15 males and 15 females could generate a representative sample that might include six students: three males and three females.

Detailed explanation-4: -A representative sample is a group of people taken from a larger population, whose data is then used to describe the entire population. In order to be a representative sample, the sample group must represent the population as a whole.

Detailed explanation-5: -Cluster sampling divides your population into groups and a simple random selection of those groups is made. You then survey everybody within the selected groups.