A A A
Manual Event (Session ID,DateTime,Event) = i7lbr18ln1i5dopnjpj6jefnui 20220704165139 /communities/what-are-some-of-the-threats-to-external-validity/

What are some of the threats to external validity?

Share:
Whtasapp
Topic Discussions

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!

Recent Activity Discussions

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

Discussion thread: Poverty, Social Disadvantage, and Social Protection
Herman
13 June 2020
What are some of the threats to external validity?

What are some of the threats to external validity?

Reply
Like
Share
Whtasapp
Emily
20 June 2020

Welcome, my pleasure

Replies
Like
Share
Whtasapp
Herman
20 June 2020

Thank you for your explanation.

Replies
Like
Share
Whtasapp
Emily
20 June 2020

-Unrepresentative samples: volunteers, enticed/coerced or available subjects—issue of overestimating or underestimating the effect of the treatment

-Issues of “unnaturalness”—what we learned from an experiment does not apply to the real world

Replies
Like
Share
Whtasapp
Latest Posts
More posts
Following the previous question, I wonder if we could find more evaluative results for supporting telehealth expansion during the COVID-19 crisis.
Following the previous question, I wonder if we could find more evaluative results for supporting telehealth expansion during the COVID-19 crisis.
John Kwong
24 June 2022
3Replies,1Months ago
Like
Share
Whtasapp
Hi there. I found it is really impressive that telehealth is so powerful, far beyond my imagination! It turns out telehealth covers so many themes, including the telehealth modalities (e.g., video, asynchronous), clinical topics (e.g., chronic disease management), telehealth function (e.g., remote patient monitoring, consultations). Could you help me with its effectiveness? It seems impossible for me to summarize.
Hi there. I found it is really impressive that telehealth is so powerful, far beyond my imagination! It turns out telehealth covers so many themes, including the telehealth modalities (e.g., video ...
John Kwong
24 June 2022
3Replies,1Months ago
Like
Share
Whtasapp
Is there any possible limitation of telehealth?
is there any possible limitation of telehealth?
Mike Tong
24 June 2022
3Replies,1Months ago
Like
Share
Whtasapp
Hi there. While it sounds like data visualizations are so valuable, I wonder if there is any weakness about it that social workers should keep in mind?
Hi there. While it sounds like data visualizations are so valuable, I wonder if there is any weakness about it that social workers should keep in mind?
Mike Tong
24 June 2022
3Replies,1Months ago
Like
Share
Whtasapp
Featured Posts
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
26 August 2021
7Replies,11Months ago
Like
Share
Whtasapp
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
20 August 2021
3Replies,11Months ago
Like
Share
Whtasapp
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 ...
meladmin
15 October 2019
0Replies,33Months ago
Like
Share
Whtasapp
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
9 October 2019
4Replies,33Months ago
Like
Share
Whtasapp