Not what you're looking for?
What are the relationships among tests and scales, populations, reliability and validity. Describe the test and scale examples from your discipline, including the populations, the reliability and validity of each test, and whether the test and scale could be applied to another population.
Purchase this Solution
The solution provides information, assistance and advise in tackling the task (see above) of defining and exploring tests and scales as they relate to concerns with regards to population, reliability and validity. Certain tests and scales are exemplified and described, their reliability and validity as well as the kind of population they best apply to. Resources are listed for further exploration of the topic. A word version (which includes samples) is attached.
Hi and thank you for using Brainmass. The solution below should get you started. You can use the listed resources to further explore the topic. Please see attachment where I have provided some examples. Good luck with your studies.
AE 105878/Xenia Jones
Test Scales & Reliability
What are test scales? To understand scales, it is important to recall the 4 types of measurement - nominal, ordinal, interval and ratio - types of scale that measure scientific phenomenon from a quantitative perspective. An example of an oft-used scale in psychometric testing in psychology is the Likert scale, a research that employs the use of questionnaires to rate or score answers along a range that signifies level of agreement. How reliable are scales? In statistics reliability is a question of the consistency of measurement. If a test produces the consistent results under consistent conditions over time, then a test has reliability. For example, a questionnaire measuring needs of students in a university given overtime, if the answers and measure are consistent despite the changing student body in a set of years means that the measure is reliable in terms of the fact that it actually seeks to find out what students needs are.
Test Scales and Validity
Validity of measure simply put means that the test (or in this case, the scale) actually measures what it says it would measure. In psychometric measurements, a test has validity if it is proven that the evidence generated ...
- MPhil/PhD (IP), Open University, Milton Keynes, UK
- MA, Open University, Milton Keynes, UK
- Certificate, Geva Ulpan (via Universita Tel Aviv)
- BA, University of the Philippines
- "Thank you!:)"
- "Excellent, thank you!:)"
- "Thank you for your timely help. I have submitted another posting (656038) and assigned it directly to you. Please help."
- "Thank you so much for your timely help. Much appreciated."
- "Thanks so much for your support."
Purchase this Solution
Free BrainMass Quizzes
Basic questions about blood pressure and measurements.
This quiz will test the basics of managed care organizations. It is important to know how our health care delivery system operates through managed care.
Do you know how to provide first aid?
Are you up to date on your CPR skills? Find out if you know what to do in an emergency with this quiz.
All humans experience stress and a certain level is motivating for learning. However, a high level of stress for prolonged periods of time may have a negative impact. This information focuses on the four stages of stress. Understanding stress assists in maintaining a healthy level.