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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
Yates Correction for Continuity for 2x 2Tables If any cell frequency in 2x 2 table isles than 5thenfor the application of X 2 test it is pooled with the preceding or suc
Assumption of F- Test The theoretical assumption on which F test is based are: 1.The populations for each sample must be normally distributed with identical mean
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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
Scope of operation research?
#Principles of OR
Problem The important task ahead of the researcher is to document the entire work done in the form of a well-structured research report. Describe in brief the components of a R
Inherent forces fomenting conflicts of interest Several forces have coalesced to increase the incidence of conflicts of interest in the medical industry: the vertical integrat
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 ot grade Y paper in
Question: (a) (i) What do you understand by the term ‘queueing theory'? Give two real life examples to illustrate your answer. (ii) Outline the five components involved in
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