The Content Domain Of Interest

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In order to determine the content domain of any given test, the developer needs to first define the construct that they wish to measure and then identify specific content that contains their domain of interest. To do this, a literature search and source materials are often located so that the developer can sample appropriate content from the materials (Griffith, 2017). As part of the methods used in this case, the reliability material was research using two sources of content: (1) the class textbook called Psychological Testing: Principles, Applications, and Issues (Kaplan & Saccuzzo, 2013); and (2) the lecture from the third week of class on reliability (Griffith, 2017). These two sources of content were selected primarily because they…show more content…
The Process by Context Matrix in this case is made up of two sources of information by which the content area would be sampled, including chapter 4 of the class textbook entitled Psychological Testing: Principles, Applications, and Issues (Kaplan & Saccuzzo, 2013) and the class lecture on reliability from the third week of the semester (Griffith, 2017) as both of these sources discussed the concept of reliability in detail. From there, the Process by Content Matrix was used to select and formulate the exact number of question items that not only complied with the items of knowledge, principle, and application but were drawn specifically from only these two sources to ensure fairness and validity in testing according to the assigned materials this class for this specific semester. More importantly, the Process by Content Matrix relays a framework or outline of the necessary content and sources required to effectively and systematically develop the test items to measure the concept that is meant to be tested, thereby improving the overall reliability as well. Please refer to Appendix A for more information on the matrix used in the development of this particular test on the concept of reliability.
Item Development Although the item writing process in content-valid test development can be a rather difficult, there are a number of things to keep in mind during the item
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