Validitas berdasar kriteria | Criterion-related validity

Summary

In this lecture, the speaker discusses criterion-related validity in testing, focusing on three types: predictive validity, concurrent validity, and postdictive validity. Predictive validity evaluates how well a test predicts future outcomes, such as academic success. Concurrent validity assesses test scores alongside current criteria, like employee performance. Postdictive validity examines how past data correlates with current test results. The speaker uses various examples to illustrate each type, providing a clear understanding of their applications in academic and employment settings. This helps to ensure that tests are effective in measuring what they intend to measure.

Takeaways

• 😀 Criterion-related validity is a way to estimate the validity of a test by correlating its scores with an external criterion score.
• 😀 A high correlation between test scores and the criterion score indicates a high level of validity.
• 😀 There are three main types of criterion-related validity: predictive, concurrent, and postdictive validity.
• 😀 Predictive validity involves using a test to predict future outcomes, such as a student’s future academic performance based on entrance test scores.
• 😀 An example of predictive validity is correlating university entrance test scores with future student GPA to predict their academic success.
• 😀 Concurrent validity occurs when test scores and criterion scores are measured at the same time, such as comparing employee test scores with their current job performance.
• 😀 Postdictive validity correlates test scores with past criterion data, such as comparing a new employee test with their past attendance records.
• 😀 For predictive validity, the criterion is measured in the future after the test is administered.
• 😀 Concurrent validity is used when both the test and the criterion are measured simultaneously.
• 😀 Postdictive validity uses already existing criterion data from the past to test the validity of the current test scores.
• 😀 Further study on criterion-related validity can be found in books by Pak Azwar and other educational sources.

Q & A

What is criterion-related validity?

Criterion-related validity refers to the estimation of a test's validity based on the correlation between the test scores and an external criterion score. A high correlation indicates that the test is valid.

How does a high correlation between test scores and criterion scores affect validity?

A high correlation between test scores and criterion scores indicates that the test is effectively measuring what it intends to measure, demonstrating high validity.

What are the three types of criterion-related validity?

The three types of criterion-related validity are predictive validity, concurrent validity, and postdictive validity.

What is predictive validity?

Predictive validity refers to how well test scores predict future outcomes. The criterion is measured after the test is administered, typically after a certain period of time.

Can you give an example of predictive validity?

An example of predictive validity is using an entrance exam score to predict a student's future academic performance, such as their GPA after one semester.

What is concurrent validity?

Concurrent validity involves measuring both the test scores and criterion scores at the same time. It examines how well test scores relate to the criterion measured at the same point in time.

Can you provide an example of concurrent validity?

An example of concurrent validity would be a job selection test where the test scores are compared with the current job performance of employees at the same time.

What is postdictive validity?

Postdictive validity involves using a criterion that is measured before the test is administered. It is based on correlating the test scores with existing historical data or records.

Can you give an example of postdictive validity?

An example of postdictive validity is when a new scale measuring employee motivation is correlated with historical data, such as past attendance records or job performance ratings.

Why is the concept of criterion-related validity important?

Criterion-related validity is important because it helps ensure that a test is accurately predicting or correlating with the intended outcomes, whether it's future performance, current status, or past records.