Question: A valid instrument is always reliable but a reliable instrument
“A valid instrument is always reliable, but a reliable instrument is not always valid”. Comment on this statement.
Answer to relevant QuestionsHow is the interval scale more sophisticated than the nominal and ordinal scales? Explain why it does not make sense to assess the internal consistency of a formative scale. a. Explain why cluster sampling is a probability sampling design. b. What are the advantages and disadvantages of cluster sampling? c. Describe a situation where you would consider the use of cluster sampling. The medical inspector desires to estimate the overall average monthly occupancy rates of the cancer wards in 80 different hospitals which are evenly located in the Northwestern, Southeastern, Central, and Southern suburbs of ...There are three measures of central tendencies: the mean, the median, and the mode. Measures of dispersion include the range, the standard deviation, and the variance (where the measure of central tendency is the mean), and ...
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