Determining Reliability, Validity, and Absence of Bias
Reliability:
Reliability is another word for consistency. The items on the quizzes and the test can be found in Holt Algebra 1 Teacher’s Resource Package. The quiz items were taken from the skill-master’s section on Section 7.1 to 7.6 and skill-master section on Section 7.7 to 7.10. The test items were taking from Test-masters Chapter 7. The group Activity items were from the Chapter Review in the Holt Algebra 1 textbook. When students finished they worked together on a worksheet from Enrichment 11, Pascal’s Triangle. These items are reliable because they were produced by Holt Algebra. All three types of Reliability would be satisfied here, Stability, Alternate, and Internal reliability.
Validity:
This assessment package is Valid because they students are assessed only on the objectives. This type of validity, content-related, can be viewed by putting the table of Specifications and the assessment tools side by side. Another form of Validity would be face validity. Face validity is the appearance of the test coincides with its purpose. The assessment tools look like how they should. One more type of Validity that could be used here is Consequential Validity. Consequential Validity is the use of the test results are appropriate employed. The students’ results are appropriately used to determine their final grade in the Unit.
Absence of Bias:
There is no bias in this test; there is no reference to any minority or majority.
All Assessment Tools were created with
Popham’s Guidelines in mind.