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Questions tagged [task-analysis]

For questions about finding meaning in the results of psychological tests.

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QUEST Staircase Resolution and Accuracy

I am flickering letters on and off to participants, controlled by a flicker rate which I am restricting to integer values. If I want to implement a QUEST staircase to determine the final threshold ...
Mark L's user avatar
  • 1
2 votes
1 answer
200 views

Slope of psychometric function too steep?

I am in a project where we are preparing a visual decision making experiment which requires participants to detect vertical grating in a patch of dynamic noise (the noise pattern is updated on every ...
nat's user avatar
  • 21
1 vote
1 answer
386 views

Reporting d-prime results

I am currently working on research analysing yes/no responses in a recognition memory task. The false alarm rate is quite high so I have performed a d-prime test and collected d-prime values. Now that ...
Adam Lord's user avatar
2 votes
1 answer
37 views

How to assess the effect of individual difference measure on quadratic fit of a within-subject factor?

In my task, there are 8 levels of a within-subjects/repeated measure factor. The overall relationship that this factor has with the DV is in the shape of an inverted-U, such that their DV scores at ...
Emmett Larsen's user avatar
1 vote
2 answers
97 views

Confidence rating in cognitive experiments

Does a confidence rating included in a post task measure the likelihood of correctness to the answer or likelihood of occurrence of an event. To give an example: participants are given a picture of ...
CSL's user avatar
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1 vote
1 answer
167 views

What's the best way to calculate an index score based on reaction time, variance and accuracy?

Say I have a go/no-go task and my output data includes 3 parameters: average reaction time, variance of reaction time, and number of errors. I want to composite all of the parameters into a single ...
Amir's user avatar
  • 11
3 votes
0 answers
175 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 ...
Ben Perlin's user avatar
2 votes
0 answers
401 views

In which way emotional "interference" affect the brain / the behaviour? [closed]

Think of two different scenarios. In both scenarios the subject is looking at emotional images, but in the first one emotional stimuli "interfere" with the behaviour, while in the second one ...
smndpln's user avatar
  • 123
4 votes
1 answer
612 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 ...
Daphne 33's user avatar
4 votes
0 answers
152 views

TOTE: Desired vs perceived state = Fight or flight

A key concept in 1960s control theory is TOTE (Test-Operate-Test-Exit)1: The concept seems to be neatly mapped to a modern cognitive concept: The brain constantly compares perceived state to the ...
Izhaki's user avatar
  • 1,115
1 vote
0 answers
41 views

Analyzing movement data for a checkerboard [closed]

For a psychology experiment - subject has to learn that the 2D grid is a checkerboard, and collect all the 1s (rewards). How do I test if subjects are actually doing it in the most optimal way -- ...
user8586's user avatar
4 votes
1 answer
1k views

Combining unbiased hit rates

I am analysing data on an emotion perception task, where participants must decide if a given face is happy, sad, angry or fearful (essentially a forced choice between 4 options). I am confident that ...
Joni's user avatar
  • 143
3 votes
1 answer
85 views

How to transform data to a frequency spectrum?

Recently, I studied a paper called "What Does Your Chair Know About Your Stress Level? It can be download at the link below. http://www.barnrich.ch/wiki/data/media/pub/...
JackSie's user avatar
  • 33
5 votes
2 answers
2k views

Is there any file format standard for EEG data?

I have started to do some research on EEG analysis. One of the challenging things I have found is the variability on the formats for the EEG files. What do you do when you receive data your software ...
drio's user avatar
  • 51
2 votes
0 answers
64 views

Identifying Overly Complex Tasks

It seems to me that societies frequently construct systems that may be too complicated for any individual to operate competently within. For example, the tax system, the legal system, the medical ...
Elliott's user avatar
  • 161
7 votes
2 answers
374 views

Relationship between cognitive load and self-indulgent behavior in simple task completion

Background A subject in an office-building setting is asked to memorize a list of numbers and to write them down on a whiteboard in another room on the opposite side of the building. The subject ...
dreftymac's user avatar
  • 173
6 votes
2 answers
185 views

Studies modelling learning curves of an overall task and subtasks

Background Lee and Anderson (2001) published an article in which they argued that learning a complex skill can be understood in terms of learning various component skills. They did this by ...
Jeromy Anglim's user avatar