please choose the correct answer

is concerned with the frequency of events and characticed by a high level of predetermined structure and quantitative analysis. A) None of the answers is correct B) Observer effect 00 Structured observation D) Videography D) Ustructure observation data are those observed from real conversations that take place in everyday, that is to say, authentic situations. OA) Reliable B) Natural C) Contrived D) Unreliable E) None of the answers is correct Newton's theory of gravity or Einstein's theory of relativity are examples about theories. A) substantive B) middle-range C) subjective D) grand E) none of the answers correct data that can be collected through questionnaires, OA) Factual or demographic B) None of the answers is correct C) Behaviors and events D) Attitudes and opinions E) All answers are correct Most critical reviews fulfill a series of related purposes. These purposes provide all of the following EXCEPT OA) a historical background to one's research B) a resolution to conflicts amongst apparently contradictory previous research C) an overview of one's research context by locating it in the associated contemporary debates, issues and questions in the literature D) no supporting evidence that one's research questions and aims are worth researching E) a discussion of the relevant theories and concepts that underpin one's research All of the following are probability sampling techniques EXCEPT A) convenience B) systematic random c) sample random D) stratified random E) random cluster