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Q. When a hypothesis relates to the cause and effect relationship of a phenomenon it is called……….

Q. One where measurements are only approximations and are expressed in class intervals ie within certain limits is

Q. If there is no accessible sampling frame,……… sampling is used

Q. A good sampling frame must be

Q. Classification on periodical basis is also called ……classification.

Q. Social status of the respondent is measured on the basis of …… scale

Q. …………………….variables are undesirable because they add error to an experiment.

Q. Which is not type of test of significance for small sample ?

Q. ………. Research does not follow any formalized pattern

Q. ……..research is mainly concerned with discovery and with generating or building theory.