What makes a quality assessment?
Several attempts to define good assessment have been made. Reliable: assessment is accurate, consistent and repeatable. Feasible: assessment is practicable in terms of time, resources and student numbers. Educational impact: assessment results in learning what is important and is authentic and worthwhile.
Why is reliability important for teachers?
An understanding of validity and reliability allows educators to make decisions that improve the lives of their students both academically and socially, as these concepts teach educators how to quantify the abstract goals their school or district has set.
How can a teacher improve test reliability?
Write clear directions and use standard administrative procedures. Because students’ grades are dependent on the scores they receive on classroom tests, teachers should strive to improve the reliability of their tests. The over-all reliability of classroom assessment can be improved by giving more frequent tests.
How can you increase the reliability of a measure?
There are several specific things that can improve reliability:
- Sample size. Remember that Johnny might have personal issues or traits that lead to a lower reliability.
- Controlled testing conditions. Another common problem with measurement involves testing conditions.
- Reliability Analysis.
How can reliability be improved?
Here are six practical tips to help increase the reliability of your assessment:
- Use enough questions to assess competence.
- Have a consistent environment for participants.
- Ensure participants are familiar with the assessment user interface.
- If using human raters, train them well.
- Measure reliability.
What are the different types of reliability?
Types of reliability and how to measure them
| Type of reliability | Measures the consistency of… |
|---|---|
| Test-retest | The same test over time. |
| Interrater | The same test conducted by different people. |
| Parallel forms | Different versions of a test which are designed to be equivalent. |
| Internal consistency | The individual items of a test. |