What is Heterogeneity?

Systematic reviewers have to decide whather or not studies are homogeneous enough to combine. This video will describe what heterogeneity is and some of the tests used to investigate it.

[@Juganuu]

Thank you so much!! This was so helpful. Can you believe someone is watching this nearing the end of 2020?!

[@afras9433]

2021 here buddy

[@emilyconlogue133]

2021 here also

[@kimannjohnson]

Nearing the end of 2021, now and this video is still very useful!

[@3lGranGon]

2021 gang

[@fahadf5494]

It is 2022 here

[@EDUARDO12348]

Thank you for the apples and oranges analogy, that made heterogeneity click

[@CJ7879]

Thank you, Professor! God Bless you!!
Your videos are saving a medical student from Brazil!

[@samanthacarr4767]

your videos are saving my butt for my exam later today ! thank you for making everything so clear !

[@irelandescada4947]

I think I have been reading math books for about 115 years and never understood this. Thank you for the 8 minutes of super clear knowledge.

[@heathermeller5716]

Thank you your vidoes are awesome and so easy to watch, and they make understanding the stats much clearer for me!

[@raybose]

Excellent video Terry, thank you so much!

[@aizatahil3827]

Thank you, I'm so happy to have found you channel!

[@uadialekennedy4079]

Thanks for this video. It has clarified my concerns.

[@YasserAbbas]

really a crystal clear explanation . thanks a lot

[@Coleman_et_al]

Fantastic video! Thank you very much! You have an educational gift!

[@avitalplotkin9330]

Thank you so much!it helped me a lot with Meta Analysis for my MT 🙏

[@jetmirzyberaj7088]

Thank you! Nice, neat and to the point. Very helpful.

[@adaoraenemuo4228]

Very helpful and clear explanation!

[@fadiqutishat6287]

Thanks so much, very useful, clear and straightforward,,could you please do more videos , understand basic concepts of reading research papers ...

[@sarahmalik714]

Thank you for an excellent explanation.

[@independiente757]

This video was so helpful. Thank you :)

[@yvetteb.6890]

Helpful as always. I am working on my dissertation. Do you discuss ways to investigate heterogeneity in detail?

[@laithoni]

You are awesome!! Thank you a lot.

[@jab726]

Dr. Shaneyfelt,
Excellent description of heterogeneity. Many thanks!
JBMD, Clinical Professor of Anesthesiology
University of Arizona

[@frauschuster4642]

Great Video! Thank you!

[@TranquilUniverseExploration]

Wonderful video! Thank you!

[@MrNomercy18]

god damn I love people who know how to explain well

[@EJBZ1]

Great video!

[@dr.md.ismailhossain2681]

meta analysis is result discussion of individual study and we may reached a certain conclusion.Is it true?

[@suprateekat5338]

Thank you this is very helpful!

[@manojshahi5576]

thank you very much for this information

[@afrothinktank]

these are really helpful, thank you x

[@happinessupto2566]

2021 COVID spread around....Take care, Prof.Terry...I enjoy your VDO..Thanks

[@nawafalmaimony7104]

Thank prof I hope you are fine , as I noticed last session 2 years ago

[@shaahyna]

Thank you for the video. Super helpful video :)

[@r_pydatascience]

Hi I would like to contact you to ask you a question on meta-analysis of a continuous outcome. Where can I get your contact, please? Thanks.

[@gabrielcunha4432]

hello Professor. So I can say heterogeneity is a bad thing for my study or I can't just classify it that way? Thanks a lot.

[@HappyWeightAoife]

This is very helpful thank you so much

[@emmiwahyuni2980]

how to check the heterogeneity of randomized controlled trials to make a systematuc review without meta analysis?

[@nuhaibrahim7458]

phew..that was so helpfull..I thought I could never understand I and X squared! God Bless you

[@ancygeorge4781]

Thank you so ,much, it was useful.👍

[@amirsohrabi7329]

Thanks a bunch!

[@SThym]

Thank you

[@smsm2199]

Nice, but need more details in how to test significance of heterogneity

[@XsparklezX5]

THANK YOU SO MUCH!!!

[@jorgemino8637]

Gracias Bacan ¡¡¡

[@mzxna1]

Thank you and it was helpful.
I'd like to ask about if I sequare 75% or more, what is the best way to reduce the heterogeneity? Also, is my comparing will be true?

[@cynthiawebb1322]

N.H.A. bbb

[@doczak69]

sorry just to clarify i2 test ...25% is due to chance or not due to chance ? thank you

[@chagas8822]

+doczak69 Not due to chance. They're more homogeneous than heterogenous.

[@maulanaikhsan8517]

finally, a worth-watch video about heterogeneity ! I only have a question about last part. my forest plot showed a data that chi square = 32.42, tau square =0.61, df=1 (P=0.0007) and I square=66% . how can I conclude that? the number of sample in my stdy are below 20.

[@user-nx2py8mh3j]

Maulana Ikh ku
san x

Thank for this videos

[@user-nx2py8mh3j]

Lê Long Hồ 5
Hi

[@musthafapeedikayil8273]

thanks

[@yungtoro]

STILL HAVE NO IDEA WHAT HETEROGENEITY IS

[@paramvaidya]

Awesome

[@ryanhall8770]

anyone here from Adam Ragusea

[@siyacer]

Ragusea

[@albertomolano]

I hate biostatistics 🤔😥😪

[@ghanisenik6022]

It is ok. But you may be good in other subjects. That's what we called heterogenosity

[@throwawayacc6384]

Anyone else watch this just to learn how to pronounce it?

[@alfredoalarconyanez4896]

Thank you