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Posts by Ethan McCormick

I can't tell if this is compliment or insult Daniel

1 year ago 2 0 1 0

Without being anti-prereg (I'm not), I think this is exactly what people are worried about, no? The thesis/dissertation process takes a year+ and people feel like they don't want to do that for every paper. Poor incentive alignment perhaps?

1 year ago 0 0 1 0

Just logged back on, so would appreciate being added. Thx

1 year ago 1 0 1 0

10 hours of the full soundtrack of LotR

1 year ago 0 0 1 0

Profit

2 years ago 0 0 0 0

I mean honestly it would save me lots of time and worry haha

2 years ago 0 0 1 0
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Level 5 is this
(From a paper a colleague reviewed; N = 11 btw)

2 years ago 0 0 1 0

Shameless self promotion but if you want an automated way to generate the expansions for SEM growth models, github.com/E-M-McCormic...

2 years ago 1 0 1 0

πŸ’™πŸ’™πŸ’™

2 years ago 0 0 0 0
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I also lay out an approach for estimating any nonlinear function as a linearized SEM through the use of Taylor series expansions. And so you don't have to do the math, I did it for you! With automatic {lavaan} syntax generation using the {leni} package function leni_sem().

2 years ago 2 0 0 0
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Which let's you do all sorts of cool things, like test whether boys really are developmentally delayed compared with girls. Or using a multiphase version, to model puberty or cortical thinning.

2 years ago 2 0 1 0
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General approach is to define a set of transformations for a linear function to a corresponding set of nonlinear parameters that more closely match developmental features of interest. For instance, the timing of developmental transitions or the height of a quadratic peak. See a cubic example below.

2 years ago 0 0 1 0
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New paper+package combination for linear estimation with nonlinear inference (LENI) - methods to obtain the results of a nonlinear model without the hassle of nonlinear estimation. Presented this at Flux this fall and really excited to see it out!

osf.io/preprints/ps...
github.com/E-M-McCormic...

2 years ago 24 9 1 1

Agree with Ashley - they are a lot of fun. Lots of thoughts, so happy to message/email or chat/practice over zoom. Fingers crossed for you!

2 years ago 1 0 1 0

Exactly. And I need commitments around regular water delivery while I’m in meetings.

2 years ago 1 0 0 0

I now require 8 pubs minimum to consider an application - seems only fair because I have many myself now and I don’t want a trainee to slow me down, you know?

2 years ago 10 0 1 0

PhD vacancy to work with my better half at Leiden University (note - Dutch required because of testing) www.universiteitleiden.nl/vacatures/20...

2 years ago 10 12 0 0

Fair warning, maybe save it for a time you’re not already a bit emotionally stressed. Like not between tough paper revision and grant admin hell (not at all a specific example lol)

2 years ago 0 0 0 0
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I just finally got around to reading A Little Life. Definitely needed a big hug after, but so good if you’ve not read it before

2 years ago 0 0 0 0

A great visual but might be nice to highlight for people that the (eyeballing it) within-person slopes can be partialed out so within subject variance isn’t inflated due to the trend. This of course generalized to other predictors but time trends are often treated with β€œspecial” consideration

2 years ago 2 0 1 0

Drop the reading list haha. I need more suggestions for the new year

2 years ago 0 0 0 0

Happy to chat over email e.m.mccormick@fsw.leidenuniv.nl if of interest

2 years ago 1 0 0 0

Are additional people being sought? Longitudinal methods is an area of interest for me and would like to see more of

2 years ago 1 0 1 0

Happy whamagedden to all who celebrate. I feel like the gays self-disqualify en masse with Mariah. People started posting her one minute after Oct 31

2 years ago 1 0 1 0

If you figure out how to do that, can I pay you an enormous sum (or at least a sum) to teach me??

2 years ago 1 0 0 0

Come on, we aren’t like that. We break it a fourth time and tell you that you should have learned better in grad school.

2 years ago 7 0 1 0
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2 years ago 2 0 0 0

Is there a submission portal for these requests? And do we get to help (I can definitely write at least one sentence in 90 days - or pitch title ideas)?

2 years ago 2 0 1 0
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Looks great - looking forward to reading it!

2 years ago 1 0 0 0