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Q. In experiment the ………… group get the program.

Q. A list of special terms and phrases used is given in the form of a ……..

Q. Exploratory research is a ……….study of an unfamiliar problem.

Q. Case study is a method of exploring or analyzing the life of a …………

Q. ……………. Questionnaires contain definite, concrete and direct questions.

Q. A questionnaire is a devise that is most frequently used in collecting ………. Data.

Q. The process of selecting a number of participants for a study in such a way that they represent the larger group from which they were selected is known as

Q. Theory is an explanation of observed ……….