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Unit 2 Discussion 1 The Scales We Use and the Comparisons We Make Resources Website icon Attributes and Evaluation of Discussion Contributions

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Unit 2 Discussion 1
The Scales We Use and the Comparisons We Make
Resources
Website icon Attributes and Evaluation of Discussion Contributions.
In this unit, you are introduced to four scales of measurement, which are easily remembered with
the acronym NOIR, and include nominal, ordinal, interval, and ratio. Each of these levels or
scales of measurement has its own properties, methods for assigning numbers or scores, and
procedures for statistically manipulating them. As noted in your Psychological Testing and
Assessment text, and adhering to a fundamentalist view of measurement statistics, all possible
attributes in psychology can be examined through at least one of these four scales and the
creation of scores that purport to measure them.
You also read about two methods for evaluating those scores through comparing them to a
reference set of data; namely, norm-referenced testing and assessment, and criterion-referenced
testing and assessment. Each of these methods is unique in the focus regarding a test's scores or
results.
Discuss the impact of each scale of measurement on the ability or inability to be utilized on a test
being standardized as a norm-referenced or criterion-referenced assessment. For the purpose of
this discussion, you may cluster the ordinal and interval scale together. Subsequently, your post
will include the following four elements:
•Ordinal or interval scale of measurement and norm-referenced test.
•Ordinal or interval scale of measurement and criterion-referenced test.
•Ratio scale of measurement and norm-referenced test.
•Ratio scale of measurement and criterion-referenced test.
In you post:
•Provide at least one example that is not in your Psychological Testing and Assessment text for
each combination above and describe how the referencing data would be collected.
•Provide a statement that evaluates which scale of measurement appears to be the most useful for
examining attributes in psychology. Explain.
•Evaluate which method of referencing (norm or criterion) appears to be the most useful for
examining attributes in psychology. Explain your decision based on the area of focus regarding
the test results. For example, identify if it is preferable to focus on how one individual performs
relative to others who took the same test, or if it is preferable to only focus on what the
individual can or cannot do.
EACH DISCUSSION SHOULD BE A MINIMUM OF 500 WORDS WITH 2
REFERENCES ONE OF WHICH SHOULD BE THE BOOK