Copyright
Like?

Qualities of Good Assessments: Standardization, Practicality, Reliability & Validity

Start Your Free Trial To Continue Watching
As a member, you'll also get unlimited access to over 8,500 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.
Free 5-day trial
It only takes a minute. You can cancel at any time.
Already registered? Login here for access.
Start your free trial to take this quiz
As a premium member, you can take this quiz and also access over 8,500 fun and engaging lessons in math, English, science, history, and more. Get access today with a FREE trial!
Free 5-day trial
It only takes a minute to get started. You can cancel at any time.
Already registered? Login here for access.
  1. 0:04 4 Qualities of Good Assessments
  2. 0:58 Reliability
  3. 2:10 Standardization
  4. 3:28 Validity
  5. 4:20 Practicality
  6. 4:48 Lesson Summary
Show Timeline
Taught by

Melissa Hurst

Have you ever been in the middle of an assessment and thought, 'This question is unfair!' or 'This exam covers material I have never seen before!' If so, the assessment probably did not possess the qualities that make an assessment effective. This lesson will introduce you to the qualities of good assessments: reliability, standardization, validity, and practicality.

4 Qualities of Good Assessments

'Ugh! I am so frustrated! That was the worst test I have ever had!'

'I know! I probably knew only half the answers at most, and it was like the test had material from some other book, not the one we were supposed to study!'

'And what was with that loud hammering during the test? Couldn't the repair men have waited until after school to repair the roof?!'

'Yeah, all of that coupled with the fact that I was starving during the test ensures that I'll get a failing grade for sure.'

This was definitely not a good assessment. A good assessment is supposed to show what we have truly learned. There are four qualities of good assessments. Educators should ensure these qualities are met before assessing students. They are:

  • Reliability
  • Standardization
  • Validity
  • Practicality

Reliability

Reliability is defined as the extent to which an assessment yields consistent information about the knowledge, skills, or abilities being assessed. An assessment is considered reliable if the same results are yielded each time the test is administered.

For example, if we took a test in History today to assess our understanding of World War I and then took another test on World War I next week, we would expect to see similar scores on both tests. This would indicate the assessment was reliable. Reliability in an assessment is important because assessments provide information about student achievement and progress.

There are many conditions that may impact reliability. They include: day-to-day changes in the student, such as energy level, motivation, emotional stress, and even hunger; the physical environment, which includes classroom temperature, outside noises, and distractions; administration of the assessment, which includes changes in test instructions and differences in how the teacher responds to questions about the test; and subjectivity of the test scorer.

Standardization

Another quality of a good assessment is standardization. We take many standardized tests in school that are for state or national assessments, but standardization is a good quality to have in classroom assessments as well. Standardization refers to the extent to which the assessment and procedures of administering the assessment are similar, and the assessment is scored similarly for each student.

Standardized assessments have several qualities that make them unique and standard. First, all students taking the particular assessment are given the same instructions and time limit. Second, the assessments contain the same or very similar questions. And third, the assessments are scored, or evaluated, with the same criteria.

Standardization in classroom assessments is beneficial for several reasons. First, standardization reduces the error in scoring, especially when the error is due to subjectivity by the scorer. Second, the more attempts to make the assessment standardized, the higher the reliability will be for that assessment. And finally, the assessment is more equitable as students are assessed under similar conditions.

Validity

The third quality of a good assessment is validity. Validity refers to the accuracy of the assessment. Specifically, validity addresses the question of: Does the assessment accurately measure what it is intended to measure?

Unlock Content Over 8,500 lessons in all major subjects

Get FREE access for 5 days,
just create an account.

Start a FREE trial

No obligation, cancel anytime.

Want to learn more?

Select a subject to preview related courses:

People are saying…

"This just saved me about $2,000 and 1 year of my life." — Student

"I learned in 20 minutes what it took 3 months to learn in class." — Student

See more testimonials

Did you like this?
Yes No

Thanks for your feedback!

What didn't you like?

What didn't you like?

Next Video
Create your Account

Sign up now for your account. Get unlimited access to 8,500 lessons in math, English, science, history, and more.

Meet Our Instructors

Meet all 53 of our instructors