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4 votes

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. ...
Jeff Miller's user avatar
4 votes
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 ...
Andrew Heathcote's user avatar
4 votes

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. ...
user14603's user avatar
4 votes

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 ...
Marc-André Goulet's user avatar
4 votes

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 ...
Bryan Krause's user avatar
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4 votes

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)...
Bryan Krause's user avatar
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3 votes

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 ...
AliceD's user avatar
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3 votes
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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 ...
AliceD's user avatar
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3 votes

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 ...
B. Critt's user avatar
2 votes

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 ...
Scott Brown's user avatar
2 votes

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 ...
Pierre Jolicoeur's user avatar
2 votes

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 ...
crsh's user avatar
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2 votes

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 ...
AliceD's user avatar
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2 votes
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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 ...
Jeromy Anglim's user avatar
2 votes

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 ...
faustus's user avatar
  • 1,247
2 votes

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 ...
StrongBad's user avatar
  • 2,633
2 votes

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 ...
Иво Недев's user avatar
1 vote

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 ...
Bryan Krause's user avatar
  • 7,435
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 ...
David Jonsson's user avatar
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 ...
AliceD's user avatar
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1 vote
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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 ...
Cameron Brick's user avatar
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 ...
Chris Rogers's user avatar
  • 12.2k
1 vote

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., ...
mflo-ByeSE's user avatar
  • 1,283
1 vote

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) ...
Nachshon Meiran's user avatar
1 vote

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 ...
andyw's user avatar
  • 167
1 vote

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 ...
andyw's user avatar
  • 167

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