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Q. An operational definition is—

Q. Drawing a sample from each stratum in the proportion to latter’s share in the total population is called

Q. Survey is usually ………….

Q. Analogies are sources of ……………….

Q. Formulation of hypothesis may not be necessary in

Q. A problem well put is ……………….

Q. The major purpose of ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ is description of the state of affaires as it exists at present.

Q. …………………. Represent common sense ideas

Q. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ is usually considered as the principal instrument in research.

Q. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ refers to the number of items to be selected from the universe.