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8 votes
Accepted

Open-source software for analyzing Electrodermal activity

I have found a list of Python and Matlab packages. I'll summarize them over here. As soon as I have gone through the packages, I'll provide some additional details. Online edaExplorer: Also in Python....
Robin Kramer-ten Have's user avatar
5 votes
Accepted

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

The difference is rather simple. NN-intervals refer to the intervals between normal R-peaks. During a measurement, artifacts may arise due to arrhythmic events or faulty sensors, for example (Citi, ...
Robin Kramer-ten Have's user avatar
5 votes

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

gjacob is correct that optional stopping is a common research degree of freedom, and one that has a considerable and unfortunate intuitive basis. Yet, depending on the context of your research, AliceD'...
jsakaluk's user avatar
  • 286
5 votes
Accepted

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

Short answer From an ethical standpoint, not including interim evaluations may be bad practice. Background I will start off with a more extreme case than in your question example, just for ...
AliceD's user avatar
  • 20.7k
5 votes
Accepted

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

Participants at the last meeting of the Society for the Improvement of Psychological Science developed a list of >100 such datasets with some metadata such as topic, country, total number of ...
Cameron Brick's user avatar
5 votes

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

I know that Helen Fisher, who is a love researcher, has developed a four factor personality model where two of the factors are quite relevant to your question. See (Fisher et al, 2015) for some ...
Eff's user avatar
  • 700
4 votes
Accepted

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

There is probably a better way of doing this, but you could probably do this using the block feature in Qualtrics. For example, I often do this when I have several multi-item scales. Each scale is a ...
Jeromy Anglim's user avatar
3 votes

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

Here this question on the psychology & neuro exchange has several cognitive test datasets. Online data repository of research in the cognitive sciences
Angus Campbell's user avatar
3 votes

Open source software for analyzing Heart Rate Variability (HRV)

A variety of packages exist that allow the calculation of these metrics. I will describe these packages by category: Software Kubios is a program from Finland that has a nice GUI, in which you can ...
Robin Kramer-ten Have's user avatar
3 votes

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

Short answer Averaging psychometric curves may not be the preferred way to pool psychophysical data. background Typically, extracted gold-standard outcome measures from the psychometric curves will be ...
AliceD's user avatar
  • 20.7k
3 votes

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

This is an important question! This practice ("optional stopping" if you stop collecting data based on your early analyses, or "peeking" if you continue collecting data) is considered a bad idea ...
qjacob's user avatar
  • 328
3 votes

How to look for correlations between heart rate and eda

HRV measures Measures of heart-rate variability (HRV) are primarily calculated with the Inter-beat interval (IBI), also referred to as RR-intervals or NN-intervals (see this question). Some variables ...
Robin Kramer-ten Have's user avatar
3 votes

What tools are available for EEG analysis on the R platform?

For the sake of completeness: eegkit, see https://cran.r-project.org/web/packages/eegkit/index.html For "historical purposes" perhaps the following could also be of interest, although development ...
Tiberius's user avatar
  • 186
3 votes

What tools are available for EEG analysis on the R platform?

I was searching for alternative when I fell on this post. Here are a few others eegUtils , the same author has a blog that might be of interest to you for further reading here I also found eegAnalysis ...
Patrick's user avatar
  • 151
3 votes

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

Andero Uusberg actually compiled a bunch of Affective Image Databases and has some useful graphics visualizing how they compare. Some of these have been mentioned above but I include the full set to ...
Afflatus's user avatar
  • 181
3 votes

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

Of course, the type of data you use depends lot on what your model purports to explain. The way i take your question, you are looking for straight up artificial classification learning experiments. ...
Nolan Conaway's user avatar
3 votes
Accepted

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

I couldn't find the SCID anywhere on the web. So i did some digging I found one literature search that used the DSM SCID as an example of a semi-structured interview from which GF data could be found (...
queenslug's user avatar
  • 2,416
2 votes

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

There is one for Trypophobia Image Detector - Browser Plugin using Deep Learning (repo: https://github.com/cytadela8/trypophobia). Download the data set v2 prepared in 2017-09 Note: The ...
Piotr Migdal's user avatar
  • 2,880
2 votes

Open fMRI data?

There was recently an issue about repositories for neuroimaging data. I just copied the table listing all of them from this paper. (Feel free to add links, I will do so when I have more time.) Title, ...
2 votes
Accepted

Implementation of Bayesian inference on cognitive science research question

A good starting point is probably Alex Etz's Understanding Bayes blog post series. He also co-authored a related paper that should be a great starting point: How to become a Bayesian in eight easy ...
Josh's user avatar
  • 5,904
2 votes

What does fMRI data look like after pre-processing?

The MRI signal is a small electrical current induced in the receiver coil by the precession of magnetization during resonance, i.e., a manifestation of Faraday's Law of Induction, wherein a changing ...
AliceD's user avatar
  • 20.7k
2 votes

Open data for behavioral psychology experiment?

There are some example data sets associated with these tutorials https://osf.io/pbwx8/ See 'get_all_data.R' in the tutorial subdirectory. You might also be interested in some of the surrounding ...
steveLangsford's user avatar
2 votes

Brain network datasets

If you create an (free) account at: https://db.humanconnectome.org , I believe you should be able to find connectomes through here. It seems like a bit of a hassle to download the files though (and ...
Christopher.L's user avatar
1 vote

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

You are using the wrong justification for using the median. The only reason you can even consider using a median or mean with Likert data is because there is meaning to values between Likert items. If ...
Bryan Krause's user avatar
  • 7,586
1 vote

EEG analysis free software?

The eegkit package for R is a good and open source toolkit for data analysis. It is easy to use and you can get really cool plots.
Aki Sunshin's user avatar
1 vote
Accepted

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

The BOLD response is used in fMRI to provide a quantified measure of activation: https://en.wikipedia.org/wiki/Haemodynamic_response. It is based on the ratio of oxygenated vs. non-oxygenated blood, ...
Cameron Brick's user avatar
1 vote

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

Yes, they almost certainly mean visual degrees. I presume you know how to calculate visual angles at the distance of your display and how to transform your eye tracked data to that coordinate system. ...
Bryan Krause's user avatar
  • 7,586
1 vote
Accepted

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

If you want to report the dispersion, add some error bars, or better do a box plot, or even violin plot, but the latter require understanding of less introductory concepts (for tuning purposes). For a ...
got trolled too much this week's user avatar
1 vote
Accepted

Searching for real biological neuron firing data [numeric]

The website crcns.org hosts open source data recorded from neurons in various brain areas.
honi's user avatar
  • 1,875
1 vote

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

In Hyman (1953) the following data is shown (Fig.1). The bits of information were the number of choices in an AFC task, where 1 to 8 alternatives corresponded to 0, 1, 1.58, 2.00, 2.32, 2.58, 2.81, ...
AliceD's user avatar
  • 20.7k

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