Constantin Yves Plessen
@cyplessen.bsky.social
Psychologist & psychometrician investigating the robustness of mental health research. Exploring researcher degrees of freedom in meta-analyses & psychometrics at University of Graz.
This is not a hypothetical question in my case, and I am only slightly embarrassed 😂
December 6, 2024 at 8:46 AM
This is not a hypothetical question in my case, and I am only slightly embarrassed 😂
Really enjoy @bsky.app so far, feels like pre-Elmo academic twitter.
Currently using @en.blueark.app to import my tweets from Twitter!
Currently using @en.blueark.app to import my tweets from Twitter!
November 15, 2024 at 1:35 PM
Really enjoy @bsky.app so far, feels like pre-Elmo academic twitter.
Currently using @en.blueark.app to import my tweets from Twitter!
Currently using @en.blueark.app to import my tweets from Twitter!
And the biggest thanks to my colleagues over the years.
Without all of you this would not have been possible or enjoyable!
3/3
Without all of you this would not have been possible or enjoyable!
3/3
November 16, 2024 at 9:05 AM
And the biggest thanks to my colleagues over the years.
Without all of you this would not have been possible or enjoyable!
3/3
Without all of you this would not have been possible or enjoyable!
3/3
I want to thank my committee for the rewarding discussions: Philip Spinhoven, Ellen Driessen (@driessen_ellen), Christiaan Vinkers (@vinkerslab), Eiko Fried (@EikoFried), Wouter van Ballegooijen (@WvBallegooijen), and Wouter den Hollander (@WinningWouter).
2/3
2/3
November 16, 2024 at 8:57 AM
I want to thank my committee for the rewarding discussions: Philip Spinhoven, Ellen Driessen (@driessen_ellen), Christiaan Vinkers (@vinkerslab), Eiko Fried (@EikoFried), Wouter van Ballegooijen (@WvBallegooijen), and Wouter den Hollander (@WinningWouter).
2/3
2/3
PhDone! 🎓
Thrilled to share that I successfully defended my dissertation last week! Immense gratitude to my supervisor Pim Cuijpers (@pimcuijpers) and Eirini Karyotaki (@KaryotakiEirini) for their support and guidance throughout the years!
1/3
Thrilled to share that I successfully defended my dissertation last week! Immense gratitude to my supervisor Pim Cuijpers (@pimcuijpers) and Eirini Karyotaki (@KaryotakiEirini) for their support and guidance throughout the years!
1/3
November 16, 2024 at 8:50 AM
PhDone! 🎓
Thrilled to share that I successfully defended my dissertation last week! Immense gratitude to my supervisor Pim Cuijpers (@pimcuijpers) and Eirini Karyotaki (@KaryotakiEirini) for their support and guidance throughout the years!
1/3
Thrilled to share that I successfully defended my dissertation last week! Immense gratitude to my supervisor Pim Cuijpers (@pimcuijpers) and Eirini Karyotaki (@KaryotakiEirini) for their support and guidance throughout the years!
1/3
Influential factors include:
•Publication bias
•Study quality
•Comparison to wait list control groups
3/4
•Publication bias
•Study quality
•Comparison to wait list control groups
3/4
November 16, 2024 at 9:12 AM
Influential factors include:
•Publication bias
•Study quality
•Comparison to wait list control groups
3/4
•Publication bias
•Study quality
•Comparison to wait list control groups
3/4
🎓 Excited to announce my PhD defense! 🎓
Research synthesis on psychological interventions for mental health.
📅 Wednesday, June 19, 2024
🕚 11:45 am
📍 Auditorium, Main Building, VU Amsterdam
🎥 Live stream: https://www.youtube.com/VUBeadlesOffice
ℹ️ More info:...
Research synthesis on psychological interventions for mental health.
📅 Wednesday, June 19, 2024
🕚 11:45 am
📍 Auditorium, Main Building, VU Amsterdam
🎥 Live stream: https://www.youtube.com/VUBeadlesOffice
ℹ️ More info:...
November 16, 2024 at 8:50 AM
🎓 Excited to announce my PhD defense! 🎓
Research synthesis on psychological interventions for mental health.
📅 Wednesday, June 19, 2024
🕚 11:45 am
📍 Auditorium, Main Building, VU Amsterdam
🎥 Live stream: https://www.youtube.com/VUBeadlesOffice
ℹ️ More info:...
Research synthesis on psychological interventions for mental health.
📅 Wednesday, June 19, 2024
🕚 11:45 am
📍 Auditorium, Main Building, VU Amsterdam
🎥 Live stream: https://www.youtube.com/VUBeadlesOffice
ℹ️ More info:...
I have a few invite codes for the other place
November 16, 2024 at 9:12 AM
I have a few invite codes for the other place
Join me today at the symposium "Advances In Meta-Analytic Psychotherapy Research"
@DPK_2023
13.00
Room C7
Organized by @MathiasHarrer, with @MiguelClara_ , @RebekkaBuescher, and Frederic Maas genannt Bermpohl.
@DPK_2023
13.00
Room C7
Organized by @MathiasHarrer, with @MiguelClara_ , @RebekkaBuescher, and Frederic Maas genannt Bermpohl.
November 16, 2024 at 9:20 AM
Join me today at the symposium "Advances In Meta-Analytic Psychotherapy Research"
@DPK_2023
13.00
Room C7
Organized by @MathiasHarrer, with @MiguelClara_ , @RebekkaBuescher, and Frederic Maas genannt Bermpohl.
@DPK_2023
13.00
Room C7
Organized by @MathiasHarrer, with @MiguelClara_ , @RebekkaBuescher, and Frederic Maas genannt Bermpohl.
🔬 New study by @conrad_harrison et al. provides IRT models for the Oxford hip and knee scores, converting patient responses into continuous scores w/ quantifiable precision. Web apps were developed for efficient score conversion.
Here's a breakdown of the findings! (1/n)
Here's a breakdown of the findings! (1/n)
November 16, 2024 at 9:28 AM
🔬 New study by @conrad_harrison et al. provides IRT models for the Oxford hip and knee scores, converting patient responses into continuous scores w/ quantifiable precision. Web apps were developed for efficient score conversion.
Here's a breakdown of the findings! (1/n)
Here's a breakdown of the findings! (1/n)
💡Our study analyzed 415 studies with 1206 effect sizes and 71,454 participants.
With 4281 meta-analyses calculated, we found an average summary effect size of Hedges’ g=0.56, showing a medium effect size.
90% of these reached clinically relevant magnitudes!
🧵2/3
With 4281 meta-analyses calculated, we found an average summary effect size of Hedges’ g=0.56, showing a medium effect size.
90% of these reached clinically relevant magnitudes!
🧵2/3
November 16, 2024 at 9:35 AM
💡Our study analyzed 415 studies with 1206 effect sizes and 71,454 participants.
With 4281 meta-analyses calculated, we found an average summary effect size of Hedges’ g=0.56, showing a medium effect size.
90% of these reached clinically relevant magnitudes!
🧵2/3
With 4281 meta-analyses calculated, we found an average summary effect size of Hedges’ g=0.56, showing a medium effect size.
90% of these reached clinically relevant magnitudes!
🧵2/3
🔍Diving deep into the world of psychotherapies for #depression:
Our new multiverse meta-analysis created over 4000 meta-analyses.
The results?
Most analytical strategies suggest the efficacy of psychotherapy for depression.
🧵1/3
Our new multiverse meta-analysis created over 4000 meta-analyses.
The results?
Most analytical strategies suggest the efficacy of psychotherapy for depression.
🧵1/3
November 16, 2024 at 9:28 AM
🔍Diving deep into the world of psychotherapies for #depression:
Our new multiverse meta-analysis created over 4000 meta-analyses.
The results?
Most analytical strategies suggest the efficacy of psychotherapy for depression.
🧵1/3
Our new multiverse meta-analysis created over 4000 meta-analyses.
The results?
Most analytical strategies suggest the efficacy of psychotherapy for depression.
🧵1/3
🚨New paper alert!🚨
We just published an exciting new study on using item response theory to study measurement error in superiority trials that use patient-reported outcome measures (PROMs)! 📊👨⚕️ #AcademicTwitter #itemresponsetheory #research #clinicaltrials
🧵1/4
We just published an exciting new study on using item response theory to study measurement error in superiority trials that use patient-reported outcome measures (PROMs)! 📊👨⚕️ #AcademicTwitter #itemresponsetheory #research #clinicaltrials
🧵1/4
November 16, 2024 at 9:51 AM
🚨New paper alert!🚨
We just published an exciting new study on using item response theory to study measurement error in superiority trials that use patient-reported outcome measures (PROMs)! 📊👨⚕️ #AcademicTwitter #itemresponsetheory #research #clinicaltrials
🧵1/4
We just published an exciting new study on using item response theory to study measurement error in superiority trials that use patient-reported outcome measures (PROMs)! 📊👨⚕️ #AcademicTwitter #itemresponsetheory #research #clinicaltrials
🧵1/4
... and show you how you can visualize all of those simultaneously.
🧵3/5
🧵3/5
November 16, 2024 at 11:04 AM
... and show you how you can visualize all of those simultaneously.
🧵3/5
🧵3/5
I will guide you through a selection of arbitrary paths a meta-analyst could walk down ...
🧵2/5
🧵2/5
November 16, 2024 at 10:56 AM
I will guide you through a selection of arbitrary paths a meta-analyst could walk down ...
🧵2/5
🧵2/5
November 16, 2024 at 10:48 AM
Is this the Will everyone is talking about?
November 16, 2024 at 11:28 AM
Is this the Will everyone is talking about?
Interested in multiverse meta-analyses?
Swing by this Wednesday from 11:30 - 12:30 (GMT) at #ESMARConf2022 Special Session 5.
If you want to have a sneak peek to see what´s going on under the hood: https://github.com/cyplessen/ESMR2022
#EvidenceSynthesis #MetaAnalysis #RStats
Swing by this Wednesday from 11:30 - 12:30 (GMT) at #ESMARConf2022 Special Session 5.
If you want to have a sneak peek to see what´s going on under the hood: https://github.com/cyplessen/ESMR2022
#EvidenceSynthesis #MetaAnalysis #RStats
November 16, 2024 at 11:28 AM
Interested in multiverse meta-analyses?
Swing by this Wednesday from 11:30 - 12:30 (GMT) at #ESMARConf2022 Special Session 5.
If you want to have a sneak peek to see what´s going on under the hood: https://github.com/cyplessen/ESMR2022
#EvidenceSynthesis #MetaAnalysis #RStats
Swing by this Wednesday from 11:30 - 12:30 (GMT) at #ESMARConf2022 Special Session 5.
If you want to have a sneak peek to see what´s going on under the hood: https://github.com/cyplessen/ESMR2022
#EvidenceSynthesis #MetaAnalysis #RStats
I just pre-ordered a copy of Network Psychometrics by @AdelaIsvoranu, @SachaEpskamp, Lourens Waldorp, and @BorsboomDenny.
I have been meaning to get a deeper understanding of this approach for a while now, and I am super happy that a textbook (soon) will exist to do just that!
I have been meaning to get a deeper understanding of this approach for a while now, and I am super happy that a textbook (soon) will exist to do just that!
November 16, 2024 at 11:44 AM
I just pre-ordered a copy of Network Psychometrics by @AdelaIsvoranu, @SachaEpskamp, Lourens Waldorp, and @BorsboomDenny.
I have been meaning to get a deeper understanding of this approach for a while now, and I am super happy that a textbook (soon) will exist to do just that!
I have been meaning to get a deeper understanding of this approach for a while now, and I am super happy that a textbook (soon) will exist to do just that!
Finally! Asking several times a week: „How would @kenjilopezalt boil this, how would he cook that? Is this just a myth or does it really improve flavor and texture? Is there any evidence for that?“ resulted in this great Christmas gift combo🎄
#evidencebasedcooking
#evidencebasedcooking
November 16, 2024 at 1:17 PM
Finally! Asking several times a week: „How would @kenjilopezalt boil this, how would he cook that? Is this just a myth or does it really improve flavor and texture? Is there any evidence for that?“ resulted in this great Christmas gift combo🎄
#evidencebasedcooking
#evidencebasedcooking
Insel 7 years later:
https://www.wired.com/2017/05/star-neuroscientist-tom-insel-leaves-google-spawned-verily-startup
6/n
https://www.wired.com/2017/05/star-neuroscientist-tom-insel-leaves-google-spawned-verily-startup
6/n
November 16, 2024 at 1:55 PM
Insel 7 years later:
https://www.wired.com/2017/05/star-neuroscientist-tom-insel-leaves-google-spawned-verily-startup
6/n
https://www.wired.com/2017/05/star-neuroscientist-tom-insel-leaves-google-spawned-verily-startup
6/n
November 16, 2024 at 1:46 PM
Week 1. A critical perspective on early psychiatric nosology
Hoche (1912) https://osf.io/ukzj4/
Some things changed in the past 100+ years, but some didn’t. Reads incredibly timely.
Hoche (1912) https://osf.io/ukzj4/
Some things changed in the past 100+ years, but some didn’t. Reads incredibly timely.
November 16, 2024 at 2:15 PM
Week 1. A critical perspective on early psychiatric nosology
Hoche (1912) https://osf.io/ukzj4/
Some things changed in the past 100+ years, but some didn’t. Reads incredibly timely.
Hoche (1912) https://osf.io/ukzj4/
Some things changed in the past 100+ years, but some didn’t. Reads incredibly timely.
I recently found this 10 week syllabus “On the Nature of Mental Illness” by @EikoFried
It looks great as it provides multiple angles on psychopathology and is guided by the history of psychiatry.
1/n
It looks great as it provides multiple angles on psychopathology and is guided by the history of psychiatry.
1/n
November 16, 2024 at 1:26 PM
I recently found this 10 week syllabus “On the Nature of Mental Illness” by @EikoFried
It looks great as it provides multiple angles on psychopathology and is guided by the history of psychiatry.
1/n
It looks great as it provides multiple angles on psychopathology and is guided by the history of psychiatry.
1/n
Can you recommend any resources/guides on switching my scientific writing workflow from Mendeley + Word to @zotero + RMarkdown?
November 16, 2024 at 2:24 PM
Can you recommend any resources/guides on switching my scientific writing workflow from Mendeley + Word to @zotero + RMarkdown?