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Answer all the problems.

problem1) What do you understand by sampling? describe the characteristics of good sample? What are the different types of sampling and their utility?

problem2) describe the significant methods of establishing reliability of measurement instruments?

problem3) Describe the different types of research designs.

problem4) What do you understand by validity of measuring instrument? describe the significant methods of establishing validity of measurement instrument?

problem5) Give a research topic of your interest with three objectives, hypothesis for each objective, qualitative and quantitative data that need to be collected and the devises to collect the data.

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