Explain what is meant by the term "validity" as it applies to the use of instruments in educational research.
Name three types of evidence of validity that can be obtained, and give an example of each type.
Explain what is meant by the term "correlational coefficient" and describe briefly the difference between positive and negative correlation coefficients.
Explain what is meant by the terms "validity coefficient" and "reliability coefficient."
Explain what is meant by the term "reliability" as it applies to the use of instruments in educational research.
Explain what is meant by the term "errors of measurement."
Explain briefly the meaning and use of the term "standard error of measurement."
Describe briefly three ways to estimate the reliability of the scores obtained using a particular instrument.
Describe how to obtain and evaluate scoring agreement.
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