Questions tagged [data]

For questions about working with or obtaining specific data sets.

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9
votes
1answer
3k views

Open-source software for analyzing Electrodermal activity

Electrodermal activity (EDA) is a measure of the sympathetic activity, typically caused by stress or an emotional state. Analysis not a straightforward process like analysing reaction times. It ...
1
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1answer
190 views

Research on Distribution of Enneagram Types in a Given Profession

I was in a conversation with an Enneagram scholar who claimed that certain Enneagram types are more likely to hold certain specific positions or have certain professions. Is there any data or has ...
1
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3answers
47 views

EEG analysis free software?

I'm looking for free software for EEG data processing. What free or opensource software packages are available for analyzing raw EEG data?
1
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2answers
17 views

Using the median for non parametric (Likert) data, when it gives you a decimal place

My colleague and I are working with non-parametric Likert data. We have been taking the median, but just realised that we are still getting values of say 2.5 or 1.5. Our justification for using the ...
0
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0answers
13 views

Reporting results of a Mann Whitney U test when the medians are equal

In the APA guidelines of reporting non-parametric tests they suggest reporting the median results when using non-parametric tests (http://evc-cit.info/psych018/Reporting_Statistics.pdf - search for '...
3
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2answers
56 views

Is there a list of large-scale, free datasets with psychological variables?

Psychologists are not using large, existing, free data to its potential. We don't know what exists, what it contains, or how to use it without a huge investment. Secondary analysis of large, open ...
0
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0answers
10 views

Combining ordinal data

I have a list of 50+ ordinal variables which have been rated by two researchers. The ratings go between zero and three. I am unsure how to combine these two ratings. It feels natural to take an ...
1
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0answers
35 views

Help understanding and visualizing the data from EEG grasp dataset from kaggle

So, I downloaded the EEG grasp data set from kaggle. I am having a hard time understanding the data and plotting it. I extracted the " first subjects' " csv files from the train folder which consists ...
1
vote
1answer
15 views

What type of data can we get from fMRI to calculate correlations?

Lets say we want to compare the correlation between the activation one part of the brain and rise in value of other variable. The design would be within subjects. What is the data that we can receive ...
1
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0answers
14 views

Data Cleaning - Stroop Test: Trying to find a paper than cleans the stroop test for individual questions

I am looking for papers that did data cleaning on stroop test results in terms of individual questions. For example, for an individual stroop test Q, remove results that took less than 200ms and more ...
2
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1answer
20 views

Open data for behavioral psychology experiment?

I have a model I'd like to compare to the Drift Diffusion model, which is commonly used to model response times and error rates in two-alternative forced-choice tasks. Lots of publications use the ...
4
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0answers
11 views

Where can I find the text of past DSM versions to visualize revision history?

I'm interested in building a data visualization to learn more about the history of the DSM. (I'm inspired by this visualization of the edit history of Darwin's "Origin of Species" by Ben Fry, as well ...
1
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0answers
25 views

Where can I find Data set for Machine Learning purposes?

I am currently doing a research in the attempt to detect onset sign of mental disorders through facial recognition. In order to do that, I would need training dataset which contains 1. Pictures 2. ...
2
votes
1answer
56 views

How do I choose the correct sigma when applying a Gaussian filter to a fixation density map?

I am currently analysing some eye tracking data which I recorded in the lab. For my fixation density maps I calculate tables showing the number of times participants made a fixation at a specific ...
2
votes
1answer
66 views

Study on the learning of programming concepts in pre-university students

I want to investigate the ability of a group of students to learn programming concepts in one hour. The students are grouped by ages: 6 - 17. The tasks are divided into concept and type. Each concept ...
4
votes
1answer
129 views

How to ask in a survey for emotional vs. rational personality

In a survey I would like to find out the correlation between different factors based on the personal dimension "being more emotional vs. rational". Are there any known studies with items that could be ...
3
votes
1answer
252 views

How to fit averaged data to obtain a single psychometric function?

I have psycho-physical data from a motion discrimination task in order to obtain PSE (point of subjective equality). I am using psignifit and have constructed individual psychometric logistic ...
9
votes
6answers
4k views

Is there any good alternative to the International Affective Picture System (IAPS)?

I'm looking for (particularly negative) emotion inducing pictures or videos. After some research, I think the best known and widely used database is the International Affective Picture System (IAPS). ...
4
votes
3answers
233 views

Is there a database of disgusting images for stimuli for experimental study of disgust?

I'm looking for a set of images that evoke a disgust reaction. In particular, I'm looking for disgusting objects (e.g. feces, maggots). Is there a database of images like this? It would be especially ...
3
votes
1answer
260 views

What does fMRI data look like after pre-processing?

I wish to know what fMRI data looks like after preprocessing. My Understanding My understanding is that fMRI is MRI in time dimension that is we have repeated scans of brain volume. A voxel is a ...
3
votes
0answers
31 views

Task-based fMRI dataset with very simple task (e.g. view stripes)

For my Bachelor thesis I need an fMRI dataset in order to look for causal relationships. I want to be able to confirm my work, so the causal relationships should already be known. Therefore, ideally ...
5
votes
3answers
99 views

Should I look at the data of an experiment before the dataset is complete?

For a research internship I am running psychological experiments online. As it takes a while until the experiment is done (meaning that enough people participated, so that a sufficient sample size is ...
2
votes
0answers
80 views

How does on one create a circumplex model (multiple answers)?

Given a list of points with arousal and valence rankings, what is the best way of showing them on a circumplex model, given that they are already tagged with 1 out of 7 selected emotions, are they ...
4
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0answers
46 views

Splitting EEG signal by marker using BrainVisionAnalyser

I have recorded a long EEG experiment with BrainVision equipment and I want to split it into smaller chunks based on marker numbers. For example, I want to have the chunk of recording between markers ...
4
votes
1answer
238 views

How to look for correlations between heart rate and eda

I am looking for some advice on how to take heart rate (HR) and electro-dermal activity (EDA) data files collected via an Empatica e4 and look for correlation between them. My research project is ...
1
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0answers
86 views

How to work with EDA data in R environment? [duplicate]

I'm looking to pull EDA data from an Empatica e4 into R. I can find packages and code that will enable this in Python and Matlab (see this previous thread) but not R. I'm much more familiar with R and ...
3
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0answers
86 views

Where to find images of the same faces with and without glasses for experiment?

I am looking to replicate the findings of Leder, forster, and Gerger (2011) in their publication of the glasses stereotype revisited. I intend to examine the same conditions of no-glasses, rimmed ...
4
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0answers
109 views

Noise free EEG signal data base

I am working on a research paper regarding EEG signal preprocessing. The first stage includes denoising the signal. However, since I need to evaluate the performance of the method I am using, I ...
5
votes
1answer
68 views

Where can I find experimental data supportive of the Hick-Hyman law?

The Hick-Hyman law states that in a reaction-time experiment, the average reaction time of a human subject is a linear function of the average information $\sum -p \log p$, i.e. the entropy, contained ...
2
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0answers
77 views

Oblique EPI in afni

It is my very first time with afni and I am having problems with the creation of the afni dataset from dicom images. I runned: ...
4
votes
1answer
417 views

How to randomise order of survey items in Qualtrics where some items have to appear together?

I have a quick question regarding survey construction that I'm hoping to get some clarification on. Here's my current survey set-up: Question 1 Question 1a (i.e., a question that relates to ...
6
votes
1answer
7k views

What is the difference between RR-intervals and NN-intervals in HRV-data?

Heart rate variability (HRV) is often used as a measure of the sympathetic nervous system. One way to quantify HRV is by calculating the Inter-beat interval (IBI), also referred to as the RR-interval. ...
1
vote
1answer
72 views

Searching for real biological neuron firing data [numeric] [closed]

I am searching for real neuron firing data, so I can look at each neuron for fire timing (frequency) and incoming/outgoing signal-strength. I already found short youtube videos of real neuron firing ...
1
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0answers
40 views

Correcting for individual differences in the usage (employed range) of rating scales

Experiments that collect subjective ratings (e.g. on a Likert 1-7 scale) necessarily have to account for between-subjects differences in how the range of the rating scale is used by different people, ...
3
votes
1answer
3k views

Open source software for analyzing Heart Rate Variability (HRV)

Heart rate variability (HRV), the change in the time intervals between adjacent heartbeats, is an emergent property of interdependent regulatory systems that operate on different time scales to adapt ...
6
votes
2answers
85 views

Does the Structured Clinical Interview for the DSM contain a Global Assessment of Functioning measure?

I suspect that only licensed psychiatrists get to see the contents of the Structured Clinical Interview for the DSM (SCID). I am drafting a proposal currently and need to know if the data I am ...
11
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4answers
1k views

Open fMRI data?

Are there any open fMRI datasets available on the internet? Experimental design doesn't matter much, since I would be working towards a new data analysis method. If the distributed data has been ...
12
votes
4answers
3k views

Which R packages have good collections of psychology datasets?

The open source statistical software R has a range of contributed packages. Some of them include datasets. I teach research methods in psychology and I'm looking for interesting real-world dataset ...
1
vote
1answer
1k views

How to compare IAT (Implicit Association Test) results of two different groups?

I already have the recommended algorithm to analyse IAT data. It allows to compare within-subject differences in response latency in the congruent versus non-congruent condition. However, in addition ...
2
votes
3answers
168 views

Categorization studies with a procedure similar to Shepard et al (1961) and Medin & Schaffer (1978)

I am looking for performance results from categorization studies with discrete stimulus features and reinforcement feedback. I need something like this: ...
4
votes
2answers
93 views

Implementation of Bayesian inference on cognitive science research question

To clarify, I am not talking about Bayesian model of cognition. That model refers to the theory that the human learning and inference approximately match Bayesian inference reasoning. (The two topics ...
5
votes
1answer
283 views

In what order do you preprocess EEG data?

I am fairly new to EEG research and I am unsure what the best ordering is for preprocessing data. Do you correct for baseline and filter the data before you go on with artifact rejection/correction, ...
9
votes
1answer
103 views

Open magnetic resonance imaging datasets on psychosis?

Are there any open magnetic resonance imaging datasets of normal and healthy adults (as controls) and psychotic subjects? Such as ADNI for Alzheimer's or OASIS for aging.
4
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0answers
123 views

EEG data processing: large data file seems empty

We have been running an experiment trying to collect ABR data using the Brainvision EP-PreAmp and Actichamp system. We ran several successful tests with short versions of our experiment, about 10-15 ...
4
votes
2answers
361 views

How do you analyse visual analogue scales with an ambiguous response?

For example, I might ask participants to complete a visual analogue scale for pain. They would be given a line that is 100mm long, and one end says 0 (No pain) and the other end says 100 (worst ...
2
votes
3answers
106 views

What sort of things are considered as “data” in cognitive science?

I understand that the field is very broad, but I'm trying to arrive at a better idea of how different disciplines use the word "data". For example, for computers it is: the quantities, characters, ...
39
votes
6answers
3k views

Online data repository of research in the cognitive sciences

Sharing data is an important part of science (e.g., see APA discussion). It's also often useful to be able to have access to datasets when teaching students how to analyse data in the cognitive ...
4
votes
2answers
271 views

Psychological journal that focuses on publishing interesting psychological datasets

There are a range of data repositories around. There are also journals that permit online attachments. That said, my general experience with such online attachments is that the data sharing is an ...
3
votes
1answer
58 views

Where to find historical dream activity data?

Is it just me, or are we dreaming less? Maybe it's the computer screens in our face all day. Maybe that's just what happens when we get older. I'm wondering if there's a resource of some kind to ...
2
votes
2answers
423 views

Where can I find a longitudinal study with a binary response?

I've spent the last couple of months trying to find real data (not simulated) of a longitudinal study, but I can't seem to find one. Any topic and time frame is fine, but the dependent variable must ...