NotesFAQContact Us
Collection
Advanced
Search Tips
Publication Date
In 20240
Since 20230
Since 2020 (last 5 years)0
Since 2015 (last 10 years)2
Since 2005 (last 20 years)2
Publication Type
Reports - Descriptive2
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing all 2 results Save | Export
Pentimonti, J.; Petscher, Y.; Stanley, C. – National Center on Improving Literacy, 2019
Sample representativeness is an important piece to consider when evaluating the quality of a screening assessment. If you are trying to determine whether or not the screening tool accurately measures children's skills, you want to ensure that the sample that is used to validate the tool is representative of your population of interest.
Descriptors: Sampling, Screening Tests, Measurement, Test Validity
Petscher, Y.; Pentimonti, J.; Stanley, C. – National Center on Improving Literacy, 2019
Reliability is the consistency of a set of scores that are designed to measure the same thing. Reliability is a statistical property of scores that must be demonstrated rather than assumed.
Descriptors: Scores, Measurement, Test Reliability, Error Patterns