Hi Nick,

Thanks for your reply.  I see the tab now.  I was looking within the pdf itself for a website address.

I've always appreciated Caspi's work (he is the person who introduced me to Q-sorting at a Harvard workshop in 1992!).  The evidence supporting a "P Factor" is quite strong.  I was curious how an ordinary researcher could reliably measure it and use it as an outcome variable.  As I understand it, this is "P" as your research team has conceptualized it.  It just means aggregating various questionnaires measuring different kinds of psychopathology (e.g., depression, anxiety, OCD, antisocial).  I haven't seen researchers make a lot of practical use of the concept and so was intrigued by your article.  Thanks again for sharing!

Geoff

Geoff Goodman, Ph.D., ABPP, FIPA, CST, CSAT-S, CMAT-S, RPT-S
Associate Professor
Clinical Psychology Doctoral Program
Long Island University
720 Northern Blvd.
Brookville, NY 11548
(516) 299-4277
http://www.drgeoffgoodman.com
http://www.rurallibrariesresearchnetwork.net
________________________________________
From: caftr@psychotherapyresearch.org [caftr@psychotherapyresearch.org] on behalf of Nick Midgley [Nick.Midgley@annafreud.org]
Sent: Sunday, August 23, 2020 11:20 AM
To: caftr@psychotherapyresearch.org
Subject: CaFTR Re: latest findings from IMPACT

Thanks, Geoff - if you follow the link, and scroll down to the bottom of the text on the website, there is a tab for 'supporting information', and the appendices can be downloaded from there.

Yes, the concept of 'general psychopathology' is an intriguing one, and I find Caspi's work on it very compelling. It seems to challenge some fundamental psychiatric ideas about the use of diagnostic categories, and fits better with the reality that we usually see such high levels of co-morbidity (although that isn't really the right term) among children referred to services. It also explains better how children presenting with anxiety at one point may turn up again a bit later presenting with self-harm, or depression... So it seems to capture something about the underlying vulnerability to poor (or good) mental health generally, which goes beyond any specific diagnosis.

But how general psychopathology (p factor) is actually measured is by no means straightforward, and still depends on what kind of measures have been used to collect data in the first place! (We're doing some other work at the moment which compares what the measures in IMPACT say about outcomes, and what the post-therapy interviews with young people and parents says about outcomes - certainly they don't both focus on all the same things!). I think the paper and the appendices between them try to explain how p factor was calculated here, but I'm sure it leaves as many questions as it does answer them...

Best wishes

Nick
________________________________
From: caftr@psychotherapyresearch.org <caftr@psychotherapyresearch.org> on behalf of Geoffrey Goodman <Geoffrey.Goodman@liu.edu>
Sent: 23 August 2020 13:40
To: caftr@psychotherapyresearch.org <caftr@psychotherapyresearch.org>
Subject: CaFTR RE: latest findings from IMPACT

Hi Nick,

Thank you for sending out this compelling study. I was especially interested in how "general psychopathology" was measured and calculated. I suspect that the answer is located in the Appendices. The article includes this statement: "Additional supporting information may be found online in the Supporting Information section at the end of the article", but I didn't see a link for this Supporting Information. Would you be able to provide the link, Nick? Thanks so much.

Geoff

Geoff Goodman, Ph.D., ABPP, FIPA, CST, CSAT-S, CMAT-S, RPT-S
Associate Professor
Clinical Psychology Doctoral Program
Long Island University
720 Northern Blvd.
Brookville, NY 11548
(516) 299-4277
http://www.drgeoffgoodman.com<https://urldefense.com/v3/__http://www.drgeoffgoodman.com__;!!DeIc-uvKXH9G!v7iZeaT8S4qhZu4lk2DdB0qrG-nEWm3JcnL7ySaGJeojNYLblNQlVQSwxZk6Lq2XXkvtEDk$>
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________________________________
Nick Midgley

Ext:    1114

Professor of Psychological Therapies for Children and Young People, UCL.
Co-Director of the Child Attachment and Psychological Therapies Research Unit (ChAPTRe).
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From: caftr@psychotherapyresearch.org [caftr@psychotherapyresearch.org] on behalf of Nick Midgley [Nick.Midgley@annafreud.org]
Sent: Wednesday, August 19, 2020 6:03 AM
To: caftr@psychotherapyresearch.org
Subject: CaFTR latest findings from IMPACT

WARNING: This email originated from outside of Long Island University. Do not click links or open attachments unless you recognize the sender and know the content is safe. - LIU Information Technology
Dear colleagues

The latest study from the IMPACT trial (treatment of adolescent depression) has just been published, and is open access, i.e. free to download. For me, this is a really interesting study, which looks at the impact that the therapies had not only on symptom-specific measures (such as depression), but also on a broader assessment of 'general psychopathology' (the so-called p factor).

Among other things, I think this helps make the case that even when treatments are designed to help with a specific issue (e.g. depression), their impact (when effective) is likely to be much broader, on a range of mental health markers...

The paper can be accessed here:

https://acamh.onlinelibrary.wiley.com/doi/full/10.1111/jcpp.13194<https://urldefense.com/v3/__https://acamh.onlinelibrary.wiley.com/doi/full/10.1111/jcpp.13194__;!!DeIc-uvKXH9G!v7iZeaT8S4qhZu4lk2DdB0qrG-nEWm3JcnL7ySaGJeojNYLblNQlVQSwxZk6Lq2Xdz4J2QI$><https://urldefense.com/v3/__https://acamh.onlinelibrary.wiley.com/doi/full/10.1111/jcpp.13194__;!!DeIc-uvKXH9G!uvfb-JxePm6lD6KDHeK94GgZXjK9RPoV2h4Je74561Nl623FsY1PBZ95yficBvCYKLOhFv0$>

Best wishes

Nick

________________________________
Nick Midgley

Ext: 1114

Professor of Psychological Therapies for Children and Young People, UCL.
Co-Director of the Child Attachment and Psychological Therapies Research Unit (ChAPTRe).
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