1. List and discuss in detail the questions that must be asked when selecting a standardized measuring instrument. Provide a simple social work example.
2. List and discuss the four levels of measurement. Provide a social work example.
3. What are measurement errors? How do these effect measurement, the research process, and your research project? Provide a social work example.
The questions that must be asked when selecting a standardized measuring instrument are: Is the instrument valid? Is the instrument reliable? If we want to ask the questions in detail, the questions will be:
Does the instrument have content validity?
Does the instrument have concurrent validity?
Does the instrument have predictive validity?
Does the instrument have construct validity?
The questions related to reliability will be:
Does the instrument have test-retest reliability?
Does the instrument have split-half reliability?
Another question asked of standardized measuring instruments is:
Is the test useable or practical? For a test to be useable, it must be economical, interpretable, administrable, and storable.
A simple social work example is …
This solution explains levels of measurement in the context of social work. The sources used are also included in the solution.