AP PSYCHOLOGY

Detailed explanation-1: -In surveys, a researcher selects a sample of subjects from the population of interest and gathers information from them. Therefore, in order to conduct a survey, we would need a list of every member of the population. This complete list is referred to as the sampling frame.

Detailed explanation-2: -Stratified Sampling During stratified sampling, the researcher identifies the different types of people that make up the target population and works out the proportions needed for the sample to be representative. A list is made of each variable (e.g. IQ, gender etc.) which might have an effect on the research.

Detailed explanation-3: -Sampling frame (synonyms: “sample frame", “survey frame") is the actual set of units from which a sample has been drawn: in the case of a simple random sample, all units from the sampling frame have an equal chance to be drawn and to occur in the sample.

Detailed explanation-4: -population is the all people or objects to which you wishes to generalize the findings of your study, for instance if your study is about pregnant teenagers, all of the pregnant tens are your target population. Sample frame is a subset of the population and the people or object that you have access to them.

Detailed explanation-5: -A “sampling frame” is a list of all elements in the population to be studied. The two broad categories of sampling techniques are probability and nonprobability. The simple random sample is a sample from the population in which every member of the total population has an equal chance of being selected.