Chapter 11: setting the RELIABILITY and VALUE of a RESEARCH TOOLThe concept of value refers to the quality and can be applied to any aspect of the research process. For the estimate process, it involves data research tools that measure it created to measure. There are two approaches that are used to determine the value of a tool: determine the relationship between logic of research objectives and questions used in a tool, and the use of statistical analysis to them proving this relationship. There are three types of value: the surface and contents, and predictions, the value of the structure.Reliability of a tool is referring to the ability to create a consistent measurement in the same conditions and obtained the same results, we say that this tool is "reliable". The results are similar, more reliability. We can define reliability from two sides: reliability (accuracy) and the possibility not to be trusted (degree). The ambiguity in the wording of the questions, change the data collection context, mood, communication between the respondents and interviewees who are interviewed are the factors that can affect the reliability of a research tool. There are consistent processes outside and inside to determine reliability.
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