What is the validity of a scale?

主題討論

Hello! I’m Dr. MEL. Nice to meet you! I’m absolutely excited that we are going to start this beautiful learning journey together and I’m sure you will find it fruitful and fulfilling. Feel free to share your thoughts here!

最近的活動討論

Got questions? Simply post them and let’s discuss!

討論：General

Cleo

2019年11月25日

What is the validity of a scale?

What is the validity of a scale?

Reply

Like

回覆

Jason Jiang

2020年2月20日

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.

回覆

Like

Hobbs

2020年2月10日

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

回覆

Like

James Kwok

2019年11月25日

You are welcome Cleo!!

回覆

Like

Cleo

2019年11月25日

Thank you so much James!!

回覆

Like

James Kwok

2019年11月25日

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

回覆

Like

Cleo

2019年11月25日

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

回覆

Like

James Kwok

2019年11月25日

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

回覆

Like

Cleo

2019年11月25日

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

回覆

Like

James Kwok

2019年11月25日

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

回覆

Like

最新討論帖

更多的討論帖

How do community care services collaborate with other healthcare providers, social services, and community organizations to create a seamless and integrated care network for older adults in the community?

How do community care services collaborate with other healthcare providers, social services, and community organizations to create a seamless and integrated care network for older adults in the co ...

Hannah Fox

2025年7月11日

3個回覆，0個月前

Like

What are the mechanisms for assessing and monitoring the quality of community care services for older adults, ensuring adherence to standards and continuous improvement?

What are the mechanisms for assessing and monitoring the quality of community care services for older adults, ensuring adherence to standards and continuous improvement?

Lia Chen

2025年7月11日

3個回覆，0個月前

Like

How do community care services facilitate social engagement and combat social isolation among older adults through activities, support groups, or community events?

How do community care services facilitate social engagement and combat social isolation among older adults through activities, support groups, or community events?

Lia Chen

2025年7月11日

3個回覆，0個月前

Like

How do nursing care services support older adults with end-of-life care and palliative care needs, ensuring comfort, dignity, and emotional support for both older adults and their families?

How do nursing care services support older adults with end-of-life care and palliative care needs, ensuring comfort, dignity, and emotional support for both older adults and their families?

Autumn Taylor

2025年7月11日

3個回覆，0個月前

Like

精選討論帖

Hi, I realized that it seems the concept “outcome” is different from the term “output”. Taking the grandparent training project as an example, what is the “outcome’ referable?

Hi, I realized that it seems the concept "outcome" is different from the term "output". Taking the grandparent training project as an example, what is the “outcome’ referable?

CouldYip

2021年8月26日

7個回覆，47個月前

Like

I have designed a large-scale survey about the life satisfaction of low-income families in Hong Kong. Is it appropriate to use the electronic survey through mobile phones?

I have designed a large-scale survey about the life satisfaction of low-income families in Hong Kong. Is it appropriate to use the electronic survey through mobile phones?

Realistic

2021年8月20日

3個回覆，47個月前

Like

Questions about program evaluation and impact assessment (PE & IA)?

Dear MEL participants, Hello everyone! We are going to meet Prof. Aron Shlonsky this week (17&18 Oct). Do you have any problems or issues in program evaluation and impact assessment? Pleas ...

jml88min

2019年10月15日

0個回覆，69個月前

Like

Question about the programme evaluation

Can someone recommend me a basic guide book for programme evaluation? We are an NGO in mainland China and providing services for young drug abusers in rural China. We learnt about your pro ...

Jessica

2019年10月9日

4個回覆，69個月前

Like

公開課程網上視聽學習材料成效/影響指標資料庫最佳實踐網上研討平台學員課程