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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Is most of Kahneman's 'Thinking fast and slow' not supported by evidence/non replicable?
'So, replicability [of all studies in this book] is somewhere between 12% and 46%. Even if half of the results are replicable, we do not know which results are replicable and which one’s are not.'
'...
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Are IQ scores above 200 statistically meaningful?
IQ scores are supposedly put on a normal distribution with a standard deviation of 15.
The population of the world is about 7,674,000,000.
So, if I know my statistics and made no numerical errors, the ...
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Any statistics on the likelihood of, consumption frequencies and dosages required for serotonin syndrome to occur with LSD?
This may be too obscure of a question to have sufficient, if any, statistics on it. If that's the case, any relevant information is appreciated.
From what I've gathered, very high doses and/or very ...
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Is Cronbach's alpha used outside of psychology?
Tau-equivalent reliability ($\rho$$T$), also known as Cronbach's alpha is a widely used measure of reliability in psychological testing. I've not encountered Cronbach's alpha in other sectors. Does ...
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What is the Reason Behind This Individuals Variability in Raven's 2 Clinical Edition Scores? [duplicate]
The Raven's 2 Clinical Edition developed by Pearson features an item bank comprised of questions numbering in the hundreds.
Because of this each test differs from the other with possible combinations ...
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How Really Effective are the Measures of Psychological Tests in Jobs Interviews and Worker Performance After Inside the Workplace
Hello I work doing smalls gig with datasets and also sometimes I create for myself some infographics and data-visualizations of interesting topics for me. for example football, cryptos, virus, etc.
I ...
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Can you prove a psychological theory on a one-person research design?
Famous psychologists have proven their theories on a few subjects (really small sample sizes, like n = 3). Yet, now, we are taught that to prove any psychological theory right, we need to gather data ...
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Need to conduct Exploratory Factor Analysis when using already established questionnaire for Big 5
I am working on a study where I plan to conduct Structural Equation Modeling with the Big 5 factors affecting another variable.
For Big 5 I am using a questionnaire that has earlier been used by ...
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0
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Square root transformation of Poisson process. How Var[P(sqrt(lambda))] ~ 1/4?
I am working on Kaggle Neural data challenge.
A number of spikes given a stimulus are Poisson distributed as
$$Y_i \sim P(\lambda_i)$$
The mean and variance of any Poisson process is given as
$$E[P(\...
3
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1
answer
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What's the most appropriate statistical analysis to run for a correlational study?
I am designing a correlational study experiment to test children on their performance on a task at $t_1$ and then at $t_2$ a year later, specifically using the balance-scale paradigm (Siegler, 1981). ...
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What is the study design for 2 samples measured at different times that can be considered independent? [closed]
I am trying to figure out the name for a design study in the following scenario. Imagine a hospital where patients with a certain condition (say bacteria infection) are treated with a certain ...
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Cortical Statistics
I just began reading Dayan & Abbott's Theoretical Neuroscience. I'm barely even through the second page, and I'm already stuck on this paragraph:
Axons from single neurons can traverse large ...
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How to build a personal behavioural chart? [closed]
The question is realistically in two parts:
how could a personal behavioural survey be constructed?
are there any existing personal behavioural survey tools available?
The behavioural survey may ...
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How to run a multiple hierarchical regression with both categorical and scale predictors in SPSS?
I'm currently carrying out research for my masters dissertation and i've run into a critical issue while trying to analyse my data. I'm a psychology student looking into predictors of male rape myth ...
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How do you interpret the MSe and partial eta squared reported with an F-statistic?
In my area of psychology we report the results of a repeated measures ANOVA with 1 within subjects independent variable as follows:
F(2,60) = 120.29, MSe = 173.09, p<0.05, ηp2 = 0.78
I understand ...
