Answer to Question 1
Major categories of qualitative research:
(1) Phenomenology originating in philosophy and psychology. It represents a philosophical approach to studying human experiences based on the idea that human experience itself is inherently subjective and determined by the context in which they live.
(2) Ethnography originating in anthropology. It represents ways of studying cultures through methods that involve becoming highly involved within that culture (e.g., participant-observer).
(3) Grounded theory originating in sociology. It represents an inductive investigation in which the researcher poses questions about information provided by respondents or taken from historical records.
(4) Case studies originating in psychology and in business research. It refers to the documented history of a particular person, group, organization, or event, and cases are analyzed for important themes.
Answer to Question 2
F
If done correctly, the stratified sample will decrease the standard error of the estimator by making sure the designated strata are more homogeneous.