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Manual Event (Session ID,DateTime,Event) = kti531mhip7vj5oa4tam6b53g4 20210727004155 /communities/what-is-the-validity-of-a-scale/

What is the validity of a scale?

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Discussion thread: General
Cleo
25 November 2019
What is the validity of a scale?

What is the validity of a scale?

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Jason Jiang
20 February 2020

Validity refers to the extent to which a measure adequately represents the underlying construct that it is supposed to measure. Empirical assessment of validity examines how well a given measure relates to one or more external criterion, based on empirical observations. This type of validity is called criterion-related validity, which includes four sub-types: convergent, discriminant, concurrent, and predictive validity.

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Hobbs
10 February 2020

Is there any way to check the validity of a scale?

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James Kwok
25 November 2019

You are welcome Cleo!!

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Cleo
25 November 2019

Thank you so much James!!

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James Kwok
25 November 2019

Sure. Despite no particular rules, the following are the points you should try to avoid:
• long complex questions
• double negatives
• double-barreled questions
• jargon or abbreviations
• culture-specific terms
• words with double meanings
• leading questions
• emotionally loaded words

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Cleo
25 November 2019

Can you give any tips about how to design the items of questionnaire?

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James Kwok
25 November 2019

You are right. There are 3 major types of validity, namely content validity, criterion validity and construct validity.

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Cleo
25 November 2019

Thx. I heard that there are different types of validity, right? How many of them and what are they?

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James Kwok
25 November 2019

It shows the extent to which it assesses what it is expected to assess.

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