4
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What experiment in a simple decision task should we run to obtain one million trials?
Just a few comments...
Since one of the advantages of a large data set is high statistical power, it might be a good idea to use a task where the key effect has not been found in previous studies. ...
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4
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Accepted
What experiment in a simple decision task should we run to obtain one million trials?
I don't like the idea that the task should be low error, errors are needed for modeling choice. I don't like random dot motion because there are big individual difference making it hard to find a ...
4
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What experiment in a simple decision task should we run to obtain one million trials?
I agree with Marc-André, the selected stimuli should have no semantic association (or as little as possible) which is why I would encourage the use of geometric shapes that vary in colour. ...
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4
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What experiment in a simple decision task should we run to obtain one million trials?
I like this idea! I think the task should be one where the data could be used by many analytic tools. Hence, the data would not only be beneficial for one particular question, for example parameter ...
4
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Different kinds of reaction time
I wouldn't call this "reaction time" but rather a form of accuracy: you're timing your press to the advance of the stop watch.
Reaction time is latency to respond to some stimulus, but in ...
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4
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How many participants are needed for online reaction time studies?
There are four variables of interest in a statistical power analysis: power (often chosen as 0.8 or 0.9 by convention, this is the probability of correctly rejecting the null hypothesis if it is false)...
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3
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Are dedicated response boxes really better in precision than regular keyboards?
Short answer
It all depends on what you wish to measure; if you are after measurements where a few milliseconds matter, response boxes are the way to go.
Background
RT measurements are finicky; USB ...
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3
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Accepted
Where can I obtain a button box for reaction-time measurements under a Windows OS?
Short answer
You can try a Cedrus response pad. They are reasonably priced and my personal experiences with these boxes are good.
Background
Response latency (RT) measurements using standard USB ...
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3
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Is there an R implementation of the linear ballistic accumulator model or Ratcliff's diffusion model for measuring response time and accuracy?
In the subheading you also mention that you're interested in matlab / python implementations:
I've personally used DMAT in matlab at that's a nice package. However, the python based HDDM package may ...
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2
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What experiment in a simple decision task should we run to obtain one million trials?
I vote for a simple random dot motion task. This has the advantages that:
1. It's easy to program. It can be delivered over the web via javascript, which makes the "many labs" aspect easy.
2. It's ...
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2
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What experiment in a simple decision task should we run to obtain one million trials?
Given many individuals (mostly men) have anomalies of colour perception, you might avoid colour; you also want a simple task with 'easy' stimuli, to enable short trial durations. Visual search ...
2
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Is there an R implementation of the linear ballistic accumulator model or Ratcliff's diffusion model for measuring response time and accuracy?
The R package rtdists is another great option:
Provides response time distributions (density/PDF, distribution function/CDF, quantile function, and random ...
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2
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Timing accuracies for displaying frames and recording response times?
Short answer
"Precision" and "accuracy" are relative parameters and the interpretation depends on your demands; their exact values depend on your hardware and software.
Background
RT measurements are ...
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2
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Accepted
How to fit an ex-wald distribution model with R?
This seems promising. I haven't used it
Heathcote, A. (2004). Fitting Wald and ex-Wald distributions to response time data: An example using functions for the S-PLUS package. Behavior Research ...
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2
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Does a general impairment test exist, that specifically would be useful for the context of driving?
In light of this - has any general impairment test - that perhaps tests reaction times or some other metric, that can be administered at a roadside, been developed?
Yes. I believe it is called the ...
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2
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Dissecting human reaction time
Complex reaction times have been extensively studied and broken down into underlying processing stages. Sternberg (1969) [Acta Psychologica, 30, 276-315.] was one of the first systematic attempts at ...
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2
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Different kinds of reaction time
I reckon the 250ms referenced is reaction to an unknown/random effect.
I watch F1 and at every start they show the reaction time of the first two drivers as even 100ms faster reaction can be very ...
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1
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Transforming Response-Time Data for normal distribution?
First, it's your residuals that need to be normal, not your data. https://stats.stackexchange.com/search?q=normal+residuals
For example, if you are doing a two-sample t-test and your data are ...
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1
vote
How can the uncertainty relation be exceeded in hearing?
Let us model hearing in the frequency domain as a Bark scale with piecewise overlapping triangular frequency distribution basis functions like this one based on normal distributions
where a piece of ...
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1
vote
Accepted
May somebody use oddball paradigm solely for psychophysical studies?
First off, I'm not an expert, but the oddball paradigm was initially developed for use in event-related potential (ERP) studies (basically EEG measures) (source: Wikipedia). Hence, because of ...
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1
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Accepted
Are reaction time and memory physiological measure or behavioral observation?
It may help considering whether the phenomenon is under some control by the participant. Pupil dilation is a physiological measure, but the speed at which I hit a key (reaction time) is a behavioral ...
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1
vote
Accepted
Does a general impairment test exist, that specifically would be useful for the context of driving?
Based in Madison, Wisconsin, CTC & Associates provides technical communications services for the transportation sector, and together with the Minnesota Department of Transportation (MnDOT), they ...
- 12.3k
1
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Does this rdists package provide actual (predicted) response time for each observation?
Not very familiar with this package, but per manual (bold and italics added):
ddiffusion gives the density, pdiffusion gives the distribution function, qdiffusion gives the quantile function (i.e., ...
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1
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How to get started with the glba R-package?
It appears as if the problem was caused by pre-processing using (the amazing) tidyverse package. When I (a) wrote the dataframe as a .csv file and then uploaded it, the LBA worked (in most subjects) ...
1
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What experiment in a simple decision task should we run to obtain one million trials?
May I suggest collecting data online?
With the latest browser technologies, RTs are extremely accurate, in the order of 5 microseconds (discussion). Even with slightly older browser tech, collected ...
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1
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What experiment in a simple decision task should we run to obtain one million trials?
May I ask, have you thought about using existing large datasets, such as those provided by Project Implicit? Dataset.
(sadly, it seems Project Implicit has not stored individual data points but ...
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