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1500 questions
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Are there any standard psychometric scales that are only applicable to within-subject designs?
A while ago, I asked the question whether Presence questionnaires are valid in between-subject designs (see the question for the background to this assumption).
While the question garnered some encouraging feedback, no one seems to know the answer…
ThomasH
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Validity of the "Common Factors" perspective
Research and practice in psychotherapy has been deeply influenced by two different approaches:
the Empirically Supported Treatments (ESTs) movement, due to the development of Evidence Based Medicine (EBM) attitude in the mental health field,…
Chris Rogers
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7
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Study claims that human brain does not produce new brain cells?
Neurogenesis is one of the most fascinating subjects to discuss. However, it seems like scientific community has difference of opinion about whether neurogenesis is possible or not in adult humans. The aim of my question is to gain insights about…
Ren
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Do action video games have an effect on spatial skills?
I've just watched a TED talk by Daphne Bavelier, who seems to be a major researcher on plasticity and video games. In it she presents results from a controlled lab study in which participants needed to perform mental rotations (around 14 minutes…
Steven Jeuris
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7
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Is there any chromatic analogue of the Shepard tone?
Is there any chromatic analogue of the Shepard tone? I am imagining that each pure tone would correspond to a pure wavelength of light, transformed in such a way that the middle of three consecutive octaves would correspond to the peak sensitivity…
Dan Brumleve
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7
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2 answers
How can I run a placebo medication pills study? Practical advice needed
I am a lab manager looking to design a placebo experiment in a behavioral lab with a medical doctor. I believe our study needs to be credible and professional. I'd appreciate any recommendations on details of placebo manufacturer or retailer, type…
brt
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How to counteract the deterioration of speech in stutterers by targeting sympathetic arousal?
I am quoting a good overview from a Quora member about the reasons why people stutter when exposed to stress:
...The underlying physiological basis of why stress provokes stuttering
has been addressed by Weber & Smith, (1990). It shows that…
Sandra
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1 answer
What regulates the strength of motor signals?
I've seen cognitive and robot models where the input signals from the sensors are directly used as the signal for outgoing motor control.
This doesn't make much sense, because obviously we're able to do heavy work with our muscles quite…
Fabian Fritz
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3 answers
Condensed NEO-PI test
I'm looking for a condensed form of the NEO-PI test. Current short forms come in at 40-50 questions, I'm wondering if it's possible to achieve a very basic degree of accuracy with 20 items.
user17641
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Accuracy and precision of wearable devices to measure galvanic skin response?
How accurate and precise are wearable devices to measure galvanic skin response compared to laboratory quality equipment? This discussion includes some details on the accuracy of wrist-based measurement devices but not for devises that measure at…
user2503795
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Does wealth cause (or correlates with) narcissism?
In the mental health field, narcissism is viewed as personality trait/disorder, which suggests little changes during the life of the subject.
Nevertheless, one mass media article (based on a book) is titled The age of entitlement: how wealth breeds…
the gods from engineering
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7
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What happened to self-administered aversion therapy (with a rubber band in particular)?
In the 1970s a great new use for the rubber band was discovered: self-administered aversion therapy. It didn't go so well in some cases, like for "obsessoinal thinking", the outcome being the opposite of the one intended.
The first paper discusses…
the gods from engineering
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7
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1 answer
Question concerning Jeff Hawkins' On Intelligence
In 2004 Jeff Hawkins' book On Intelligence was widely praised. But Hawkins made some claims about artificial neural networks that seem (to me) untenable today, only 13 years later. He gives the impression that artificial neural networks are in…
Hans-Peter Stricker
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1 answer
Which Cognitive Sciences are the most affected by the Replication Crisis?
As many here are probably aware, a replication crisis seems to have been occurring in many scientific fields for some time now. Allegedly, Psychology is at the center of this crisis, with many of its high-profile studies turning out to be impossible…
Boblicon
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7
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1 answer
In the digit span test, why do some strategies work and others don't?
I got a free copy of PEBL, psych experiment software, which includes a couple of standard working memory tests.
When I perform the digit span working memory test, I can repeat the numbers as they appear, and do some basic chunking. For example, I…
user7852