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CONSTRUCTION PROCEDURE
The construction of an interview schedule or questionnaire is a time consuming task requiring considerable attention to all the details. The investigator must make many decisions, including whether to use an interview schedule or a self administered questionnaire as well as how to balance open-ended and close-ended questions.
Researcher generally works with an outline of the instrument if it is complex and encompasses a variety of topics. Questions for relevant content area are then drafted or borrowed or adapted from other instruments. Researcher must carefully monitor the wording of each question for clarity, sensitivity to the respondent's psychological state, freedom from bias and reading level. Questions must then be sequenced in a psychologically meaningful order and in a manner that encourages'cooperation.
When the instrument has been drafted, it should be critically reviewed by experts, and pre-tested with a small sample of respondents. Pre-test. is a trial run to determine insofar as is possible whether instrument is clearly worded and free from bias
Maximize Z = 2x - 7y subject -2x + 3y = 3 4x + 5y >= 10 6x + 7y 4x + 8y >= 5
One Sample sign Test In a one sample test the null hypothesis μ = μ 0 against an appropriate alternative on the basis of a random sample of size n we replace each sam
Other Determinants of Sample Size 1. The variability of elements within the population has become a very important factor to decide the sample size. The more v
Small Sample The central limit theorem does not work well with small samples even if the population in non Gaussian. So we cannot rely on the central limit theorem
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
This methods studies development from simpler forms through a long series of a small change. Each change by itself results in minor modification in the phenomenon but the
What is linear programming
Description Skype is currently the most popular VoIP software in the world. Existing research has indicated that Skype can provide better voice/video quality in adverse net
Principles of Construction of Research Tool Content of research tool should be based on aims and need of research problem: The questioning words must be concise compreh
Ask question #Minimum 100 woRead this article and then write a three-page summary of the application (problem definition, objective function constraints, decision variables, etc.)
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