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Reliability and Validity Paper Samantha Smith BSHS/382- Research and Statistics April 22‚ 2013 ANGELA COLISTRA Introduction Reliability and Validity are two important aspects of research in the human services field and without these tools researchers results would be incomplete. This paper will give examples of the different types of reliability and validity and examples on how they apply to human services research. Also this paper will provide examples of data collection
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1. What is external validity? a. External validity is the extent to which findings may be generalized. (Page 292) 2. Why should a researcher be concerned about generalizing to other populations? a. Researchers should be concerned about generalizing to other populations‚ because if their research is not generalizable then their findings will be limited to only one population and will not have a far-reaching effect. (Page 292) 3. How can the fact that most studies are conducted with college students
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High-Impact Interview Questions 701 Behavior-Based Questions to Find the Right Person for Every Job Victoria A. Hoevemeyer Foreword by Paul Falcone American Management Association New York • Atlanta • Brussels • Chicago • Mexico City • San Francisco Shanghai • Tokyo • Toronto • Washington‚ D.C. Contents Foreword Acknowledgments Introduction CHAPTER 1 Interviewing: The Way It Is (Warts and All) Traditional Interview Questions Situational Interview Questions Brainteaser Interview Questions
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a C. Reliability In order for assessments to be sound‚ they must be free of bias and distortion. Reliability and validity are two concepts that are important for defining and measuring bias and distortion. Reliability refers to the extent to which assessments are consistent. Just as we enjoy having reliable cars (cars that start every time we need them)‚ we strive to have reliable‚ consistent instruments to measure student achievement. Another way to think of reliability is to imagine a kitchen
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Reliability It means the extent to which a test is consistent and dependable. It is concerned with the consistency of responses from moment to moment. However‚ it may not always be valid. Techniques in Testing the Reliability of Assessment Methods or RAM I. Test-retest Method The same test is administered twice to the same group of student and the correlation coefficient is determined. Disadvantages: 1. When the time interval is short‚ the respondents may recall their previous responses resulting
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Validity A really important aspect that has emerged in our project is validity which must be put into consideration when developing and evaluating a language test‚ since it will allow us to evaluate the utility and appropriateness of the test for our particular purpose and context. Therefore‚ the validity of a test can only be established through a process of validation and in order to carry it out‚ a validation study has to be undertaken‚ on the basis of arriving at a conclusion as to whether
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Reliability in the design context Weibull Analysis • • • • Practical testing Trends Beta trends Real data for numerical work • Weibull examples Failure rate Early-life failure Wear out Mid-life failure Time in service Failure rate Falling values suggesting initial defects x Rising values suggesting wearing out o x o x x Time in service o o o Failure rate β>1 Β<1 β=1 Time in service Failure modes and effects analysis System/equipment: Analyst: Dwg no‚: Date:
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Subject Mock Interview Report I have completed the Mock Interview for the course. Results show strengths of interviewing skills and areas that need improvement. Results Interviewers were instructed to randomly choose questions from a question pool to ask the interviewee and rate each response on a scale from 1 to 10. The variety of questions covered generic and typical questions that are universally asked at job interviews. These questions were worded in ways to identify the interviewees’
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Interview Question Name of Student College Interview Question Job Title: | Laboratory Technician | Brief description of position: | Reports to the Head of Department‚ Biological Sciences. To work in conjunction with Science teachers and other heads of Department. Ensure proper equipment of the college laboratory‚ able to prepare laboratory procedures for class experiments and examinations. | 1) Interview Question: | What five apparatus can you quickly identify immediately you enter
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