PSY 3307 Lecture Notes - Lecture 3: Strong Interest Inventory, Hypochondriasis, Operational Definition
1 Nov 2016
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Document Summary
Steps in developing a psychometric instrument: objectives, definitions. 2: develop a framework, practical choices and table of specification, write items, pre-test and refine, pilot test. 9. item analysis and refinement reliability and validity testing. Comes from: specifying a need, literature review, experts. Define a construct (ie. what is anxiety? for the purpose of this study it will be ) Operationally defines important aspects of that construct. Attitudes towards quality of lie in ottawa. Define in very clear terms what your construct is. Practical choices: how many questions to ask, how you will distribute the questions, too many questions may make your data invalid as the participants may get bored. Use a pretest (small group trial run) to get feedback to better your questionnaire. Sources of information for instrument design: literature review, theory, direct observations of behaviour, talking, expert opinion, and articles in newspapers or magazines. What type of instrument will it be. Item analysis, pilot scale, reliability, and validity.
