Questions tagged [statistics]
For questions about statistical methods that might be appropriate for certain paradigms within psychology, psychiatry, neuroscience, or cognitive science.
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How do you model signal detection in an alternative non-forced-choice task?
This question is about signal detection theory for psychology research.
Our study used a memory task where participants were given four options: A, B, C, and "I don't know". I have multiple ...
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What kind of statistical analysis is suitable for this simple but unresearched data?
The data is regarding the perceived roundedness of given word stimuli (n=36). Each participant (n=44) rates each stimuli on two scales, roundedness & familiarity (both from 1-7 not round (sharp)/...
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Using Exploratory Factor Analysis for Items That Belong to Different Scales
I have a quick question about factor analysis from different scales. Is it advisable to use, conjunctly, items from various measures? For example, say that I want to evaluate factors that most ...
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Are self-reported depression scores from inpatient facilities used to measure the efficacy of different pharmaceuticals?
In the United States, patients with clinical depression are somtimes hospitalized for sucidal ideation or attempted suicide. It is common practice to prevent patients from discharging themselves from ...
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Self-report measures always correlate? Research legends or the truest truth
Once upon a time a couple years B.C. (BC stands for before coronavirus), when I was a student, I asked my advisor about using two questionnaires in my research. One was some emotional intelligence ...
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Alternative metrics to assess test validity/reliability
I have two versions of calculating a score for a test (which assesses how well they perform a task). One takes into account the difficulty of the items, the other does not. These tests are ...
4
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1
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297
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How do scientists/psychologists deal with conflicting experiment results?
I'm currently writing a paper and one of the points is about how overprotective parenting can cause anxiety in children.
The results seem pretty clear cut in favour of the assertion (1).
https://www....
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What work has been done studying methodological reforms in psychology after the replication crisis?
Can anyone point me to academic work that systematically studies how standards and methods have changed in psychology as a response to the replication crisis? Thanks.
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How to determine the sample size for a Confirmatory Factor Analysis CFA
I'm in the process of developing a scale. Overall, my question is how do I determine how many participants to include in my sample for the first Confirmatory Factor Analysis procedure? More ...
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Types of Research for comparing two Groups [closed]
i am planning to do an empirical research for my Thesis, which is about the influence of exercise on the psychological and subjective well-being of individuals (60-90 years of age).
hypothesis: ...
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On performing threshold-free-cluster-enhancement permutation tests--in combination with SPM--and then displaying the results on an MNI template
I'm trying out numerous comparison correction methods on my fMRI dataset and I've encountered multiple papers which used threshold free cluster enhancement, which I'd like to incorporate, but I'm ...
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Do different ethnic groups have the same standard deviation of the IQ distribution?
There is a lot of research suggesting that different ethnic groups either within US or worldwide if all plotted together would have distributions of IQ with different averages. The reasons for that ...
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Using multilevel modeling to assess gender differences in intervention effects of an RCT, and how to look at mechanisms of change
I'm looking for some help here - so I'm a grad student and stats newbie (but trying to move on from newbie status!) and attempting to figure out how to conduct the analyses I'm interested in but I'm ...
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what's the point of range restriction correction in IQ studies?
Specifically, it seems to me that correcting for range restriction of IQ in things like college is like asking "how well would people who don't go to college do in college?"
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Method and sample size to test validity and reliability of a scale/ survey
I am working on a project where I need to use a scale to measure certain psychological and political positions. I have a questionnaire that is used in the US, and whose validity was tested there quite ...
