I have another question. Group sizes are unequal in my sample because of some practical reasons. What would be the risk if the assumption of homogeneity of variances is violated in this case?

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: General

Mani

5 August 2020

I have another question. Group sizes are unequal in my sample because of some practical reasons. What would be the risk if the assumption of homogeneity of variances is violated in this case?

I have another question. Group sizes are unequal in my sample because of some practical reasons. What would be the risk if the assumption of homogeneity of variances is violated in this case?

Reply

Like

Replies

lovenature2000@hotmail.com

5 August 2020

You are welcome!

Replies

Like

Mani

5 August 2020

Thank you.

Replies

Like

lovenature2000@hotmail.com

5 August 2020

If group sizes are vastly unequal and homogeneity of variance is violated, then the F statistic might be biased when large sample variances are associated with small group sizes. When this occurs, the significance level will be underestimated, which can cause the null hypothesis to be falsely rejected.

Replies

Like

Latest Posts

More posts

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

11 July 2025

3Replies,0Months ago

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

11 July 2025

3Replies,0Months ago

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

11 July 2025

3Replies,0Months ago

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

11 July 2025

3Replies,0Months ago

Like

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,47Months ago

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

20 August 2021

3Replies,47Months ago

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

15 October 2019

0Replies,69Months ago

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

9 October 2019

4Replies,69Months ago

Like

Courses for public Web-based audio visual learning materials Outcome / impact indicator bank Best Practices Sharing Online community of practices Courses for participants