Validity: Accuracy
A student scores high on a reading test, and it actually reflects how well they understand grade-level texts.
What is high accuracy of score-based inferences?
A math assessment shows which students need extra tutoring, and teachers adjust lessons based on that info.
What is supportive of the test’s purpose?
A spelling test is given twice in a month, and most students’ scores are about the same.
What is test-retest reliability?
Students take two versions of a history quiz, and scores are very similar.
What is alternate forms reliability?
A writing rubric consistently rates essays the same way across multiple criteria.
What shows internal consistency reliability?
A math quiz identifies which students truly understand multiplication and which still need help.
What is accurate measurement of ability?
A writing exam is meant to improve essay skills, and teachers use the results to plan instruction.
What is instructionally valid?
A math quiz is repeated after two weeks, and students’ scores remain similar.
What is stable over time?
Two equivalent math tests are given on different days, producing similar results.
What shows reliability across forms?
A history test’s items all contribute to a single score that accurately reflects student knowledge.
What is item-level reliability?