CHAPTER 11: SETTING THE RELIABILITY AND VALUE OF A RESEARCH TOOL
The concept refers to the value of quality and can be applied to any aspect of the research process. For the measurement process, whether it involves research tools measure which it created to measure.
There are two approaches are used to determine the value of a tool: identify links logic system between the objectives of the research and the questions used in an engine, and the use of statistical analysis to prove this relationship. There are three types of values: surface and content, concurrent and predictions, the value structure.
The ability of an instrument reliability refers to the ability to generate consistent measurements in the same conditions and obtained the same results, we say that this tool "credible".
the more similar outcomes, greater reliability. We can determine the reliability from both the reliability (accuracy) and an inability to trust (incorrect level).
The ambiguity in the wording of the questions, changing circumstances of data collection, the mood of respondents, communication between the interviewer and the interviewee are factors that can affect the reliability of a research tool. There consistent processes outside and inside to determine reliability.
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