For questions about experimental and theoretical methods, procedures, and tools used while conducting research in the cognitive sciences.

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13 views

Quest procedure convergence after random answers

I use Quest procedure to find threshold for stereo disparity changes of a stimuli. I use a C++ implementation derived from the one in Psychotoolbox and I wonder whether the behaviour I observe is ...
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0answers
60 views

Description of an EEG experiment

I am working on Brain-Computer interfaces. In my project we try to control the movement of a robot in three directions, namely forward, right and left. We have done an EEG experiment where we have ...
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0answers
76 views

Before and After survey. How to achieve this online [closed]

I was recently given a project by my professor. I am to provide a Before and After survey regarding sickle cell anemia. One survey is to be provided before a video that talks about sickle cell anemia. ...
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0answers
29 views

Accuracy of methods for detection of dementia in EEG [closed]

I found these methods mentioned in bioengineering and other papers: Fractal Dimension Measure, Probability Density Function of the Zero-crossing Intervals, Approximate Entropy But I think every of ...
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0answers
38 views

How to identify participants answering online questionnaires who have not paid attention? [duplicate]

I often analyse data that involves participants completing a selection of psychological tests online. A concern with online testing is that some participants may not complete the task conscientiously. ...
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2answers
72 views

Is cognitive science hypothesis-based or bound to strict experiments involving statistics?

When I look at medical journal articles on Google Scholar I see a lot of stuff based on double blind placebo tests. From this, I've gathered that medicine often performs experiments. I've been in ...
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1answer
17 views

Which commodity technologies offer useful neuroimaging data?

Do any commodity technologies exist that offer useful neuroimaging data? By commodity I mean lowish cost and not requiring specialist technicians to run. By useful I mean able to reliably provide ...
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1answer
77 views

What is a good rough rule of thumb regarding required sample size for questionnaire studies?

I need to perform a questionnaire as part of my final project. What are the quick-and-dirty rules for knowing how many respondents I need to get meaningful results?
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6 views

Control group VS. norms

I am reading now many studies about juvenile offending and delinquency, and there are always compared offenders´ results from different tests (for example personality, IQ) with control group. I am ...
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16 views

I'm doing a research design paper on “pheromones” [on hold]

It's rather simple, really. We are required to have 2 IV's with their levels and op. definitions and a DV. My Dependent Variable is attraction via smell, by IV1 is Time of month (for menstrual cycle) ...
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0answers
7 views

the use of life grid technique to overcome recall bias in a case control study

Can anyone give insights into the use of the life-grid technique to overcome recall bias in a young adult population? My study requires participants (aged 19 to 30 years) to recall information of ...
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0answers
8 views

What would be a good headset with microphone for cognitive psychology experiments?

I'm looking for a comfortable headset with good sound and a decent microphone attached to run cognitive psychology experiments, but I'm not sure what to buy. Subjects will have to wear it for 1h30, ...
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15 views

How are hypotheses or 'regions of interest' selected in an exploratory ERP study?

For instance, in a research area where there are no directly relevant ERP studies to provide a rationale for specific hypotheses. I recall hearing about data-driven selection of components to ...
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2answers
193 views

Should questions in psychology always be objective questions? [closed]

Is it correct that a subjective question is not a psychological question? I.e. for a question to be psychological, must it be an objective question? E.g. a question about an objective probability ...
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1answer
62 views

Build model to explain data [closed]

I'm not a psychology student, but I'm doing a subjective experiment which is similar to magnitude estimation: simply measure the effect of different stimulus through a number from 1-10. Now I need to ...
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1answer
58 views

How do you make psychology experiments? [closed]

Have you used Inquisit, E-Prime, DirectRT, or Qualtrics to make psychology experiments? I worked in a psychology lab as a programmer and I thought these programs felt very outdated and not user ...