Questions tagged [methodology]

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

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Which study design to use: nested case-control or case-cohort?

I am following a cohort of patients over time from which I am planning to sub-sample a sub-group of patients to pilot a new intervention. The plan is to compare the effectiveness of the new ...
Greg's user avatar
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Zimbardo’s Stanford prison experiment with women

In the (in)famous experiment by psychologist Zimbardo at Stanford, also called the Stanford Prison Experiment, my understanding is that only males were selected. Is there any other analogous ...
user's user avatar
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6 votes
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What to do when you have a speed-accuracy trade-off in your data?

Many studies report that a speed-accuracy trade-off (SATO) did not occur in the data since there is a positive correlation between RTs and error rates. In other words, people took longer to respond ...
z8080's user avatar
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Resource on how to effectively develop within-subjects vignette based study

Background: Where I used to work fellow researchers used to have a task known as the CV task. The task required participants to answer a number of questions about a set of CVs (e.g., is this a good ...
Jeromy Anglim's user avatar
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The definition and measurement of Machiavellianism

APA provides the following definition: a personality trait marked by a calculating attitude toward human relationships and a belief that ends justify means, however ruthless. A Machiavellian is one ...
rus9384's user avatar
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Does the wording of official ethnicity questions influence perceptions in the longer term?

It is well known that the sequence in which questions are asked in a survey can affect answers as earlier questions can influence the frame of mind in which a respondent answers a subsequent question. ...
Nemo's user avatar
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Timing accuracy in presentation of videos with different frame rates (with COGENT)

For our fMRI study we want to present videos of 3 seconds duration. The videos have different frame rates: 48 videos were recorded with 50 fps 16 videos were recorded with 25fps 64 videos were ...
Jana's user avatar
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EEG data processing: large data file seems empty

We have been running an experiment trying to collect ABR data using the Brainvision EP-PreAmp and Actichamp system. We ran several successful tests with short versions of our experiment, about 10-15 ...
psychologue's user avatar
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Is there an extension of multinomial process models that incorporates response latencies?

In an experimental setting where a categorical response has to be given, the same response can, in theory, be generated by different latent processes. For example, in an experiment where participants ...
Pavel's user avatar
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Self-report measures always correlate? Research legends or the truest truth

Once upon a time a couple years B.C. (BC stands for before coronavirus), when I was a student, I asked my advisor about using two questionnaires in my research. One was some emotional intelligence ...
Lil'Lobster's user avatar
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Can the administration of self-report measures of craving prompt participants with addiction to experience craving during the experiment?

My research focuses on measuring the neural correlates (through resting-state EEG) pre-post an improvisational music therapy session (MT sessions) in clients with substance misuse. One of my variable ...
Fil's user avatar
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How can one detect ACC, PCC or any other medial cortical activity with MEG or EEG if it's inside the brain?

Been reading some research involving various brain imaging techniques and it's not my strong point. Really, if the electrodes or SQUIDS measure surface activity, how does one measure what's going on ...
Non-chemist_dude's user avatar
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Does anyone have R code for analyzing skin conductance data?

Similar question here Open-source software for analyzing Electrodermal activity But with no R code answers provided, and the online EDA explorer appears to be unavailable now. I am looking for code ...
user21612's user avatar
3 votes
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287 views

PSE with Palamedes or Psignifit

I have used a Cumulative Gaussian function to fit the data I got from a 2AFC experiment. How can I calculate the point of subjective equality using the Palamedes toolbox for matlab or the psignifit ...
Maria Maglra's user avatar
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How do different emotional intensity ratings within a condition influence the comparison across different conditions in an event-related fMRI task?

I'm planning an event-related fMRI-experiment to investigate the difference in processing natural and computer-generated expressions. For this, we recorded videos of 4 different actors posing fearful ...
Anna's user avatar
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What is the effect of Gibbs artifact on multi voxel pattern analysis?

I have collected a EPI BOLD sequence data using Siemens skyra 3T. The voxel size is 3x3x3 mm^3. TR = 2s. I am seeing Gibbs artifact similar to the image: People have suggested to smooth the data to ...
Aakash's user avatar
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How effective are online providers of paid participants for psychological experiments?

I'm looking for places to recruit participants for online experiments, and in particular, for experiments using Inquisit Web. My lab used to recruit participants through M-Turk but that's no longer an ...
Nat's user avatar
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Detecting signs of dementia in EEG signal

I would like to know, how dementia can be recognized in the EEG signal of patients with dementia. What I have found so far: According to (Henderson et al., 2006) subjects with dementia are ...
matousc's user avatar
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Can microdialysis be made in Drosophila melanogaster?

Microdialysis is a common method to study the effects of drugs on specific mamal brains zones (mostly in rats), in order to study the it's interaction with the function of those specific areas that ...
Keber's user avatar
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What Quantified Self reserach tools are there for measuring performance while playing videogames?

I've recently became aware that there's a whole field of quantified self - using various methodology to collect data about human performance in an attempt to "quantify" how the human body/brain works. ...
Alex Stone's user avatar
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2 votes
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Question about risk of bias tools

I am currently conducting a systematic narrative review for publication and I need to settle on a risk of bias tool. It is a systematic review on mechanisms of change in psychotherapy and therefore I ...
Max Moser's user avatar
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New methods of treatment of psychological trauma?

Classical methods of psychological treatment of trauma help many people, but there is always a percentage of the patients those are can’t be healed with classical methods like Drug interventions, ...
Last Chance's user avatar
2 votes
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63 views

Reducing self-selection bias by controlling for motivation to fill in the survey

The self-selection bias refers to the overrepresentation of people willing to participate in research among studies' participants. The bias could be particularly relevant in surveys relevant to ...
Probably's user avatar
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2 votes
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33 views

Is there a term for a situation when questions in an anonymous survey may alienate the answers of the survey?

A friend was complaining to me the other day about a anonymous survey that they started to answer online which made them feel as if the survey was making negative presumptions about them which led to ...
dsollen's user avatar
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How exactly should the items in the MEC-SPQ be rotated?

citing from the usage instructions of https://academic.csuohio.edu/kneuendorf/frames/MECFull.pdf "The MEC-SPQ was designed for immediate assignment after media exposure. Starting with ...
ganthern's user avatar
2 votes
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47 views

Psychological Diagnostic Test

Can a person sway the results of their Psychiatric diagnosis test? Say a person has a mental illness that is more serious that they want to accept, if they know enough about Psychology, can they gear ...
111's user avatar
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2 votes
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Can some one operate 15 points lower during some part of the day and then return to normal?

Few days back I took an IQ test (online mensa norway) and found my IQ score to be 85. I actually had my IQ professionally tested 16 months ago by a psychologist when I was 18, and found out that I am ...
Sussan's user avatar
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2 votes
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22 views

How to crowdsource behaviour across > 100.000 humans while each human only solves a very short task (< 10 sec)

I'd like to carry out a behavioural experiment that involves humans classifying a very simple image into one of two classes and there is no right or wrong answer. For the question of the study it is ...
user45893's user avatar
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101 views

Is synchronization between the MRI scanner and the stimulus presentation necessary for every trial?

I'm planning an event-related fMRI-experiment to investigate the difference in processing natural and computer-generated facial emotion expressions. I've seen a lot of studies that synchronize the ...
Hanna's user avatar
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2 votes
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(Ekmans' Atlas of Emotions) What meaning (if any) can be deduced from the geometry of the "mountain" depicting a given emotion?

I have recently discovered that the Atlas of Emotions may be a useful tool in a research project I am working on. While lovely to look at, the Atlas seems to lack any description of the data encoded ...
Aaron Dall's user avatar
2 votes
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87 views

How can you "time-stamp" data based on a physiological response?

When measuring a particular phenomenon or cognitive state, it is interesting to use multiple measures. This allows you to inspect the similarity and differences of these measures, and serves as an ...
Robin Kramer-ten Have's user avatar
2 votes
0 answers
155 views

EEG electrode cluster selection

Is there a good review paper on electrode selection in EEG analysis to avoid the problem of double dipping (Kilner, 2013)? This is a well documented issue in neuroimaging (Kriegeskorte et al, 2009; ...
Mabu's user avatar
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2 votes
0 answers
49 views

How to intelligently resolve WinTabMex error in Psychtoolbox on Windows 7?

While piloting a task in psychtoolbox and exiting via (ctrl-c --> sca), I receive this error: Error using WinTabMex Tried to initialize WinTab, but it is already initialized! Call code 1 (...
randomWalk112358's user avatar
2 votes
0 answers
266 views

Is truth serum used in any psychiatric or psychoanalytic practices?

Is sodium thiopental (truth serum) used in any psychiatric or psychoanalytic therapies? I presume it is legal for use, since it is Schedule III, and it is administered in surgeries. It clearly has ...
New Alexandria's user avatar
2 votes
0 answers
439 views

Where to recruit paid participants for online Inquisit experiments?

My team and I are trying to use Inquisit for a reaction-time based experiment looking at attentional bias. However, with the no download policy on Mturk and CrowdFlower, we don't know a good site to ...
Michael's user avatar
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2 votes
1 answer
231 views

Do ADHD exams necessarily test ADHD or merely ADHD-PI?

I read on reddit and Wiki that the types of ADHD are ADHD-PI (predominantly inattentive), ADHD-C (combined) and ADHD-PH (predominantly hyperactive or impulsive). In a psychological test intended to ...
BCLC's user avatar
  • 707
1 vote
0 answers
32 views

Can you prove a psychological theory on a one-person research design?

Famous psychologists have proven their theories on a few subjects (really small sample sizes, like n = 3). Yet, now, we are taught that to prove any psychological theory right, we need to gather data ...
Lil'Lobster's user avatar
1 vote
0 answers
121 views

Is there a specified way to shorten the number of questions in an instrument/questionnaire?

If you have found a fitting instrument that measures your interest and has been validated but is a bit too long, what can you do to shorten it? Edit: How do you reduce the number of questions ...
user21208's user avatar
1 vote
0 answers
41 views

Is it okay to use "fixed number of factors" in EFA after contradicting results from MAP test and eigenvalues?

I need help with my data analysis. I am using a non-validated translated questionnaire in my survey. The purpose of it is not to validate the measure in a different language and its construct validity,...
Hannah Pool's user avatar
1 vote
0 answers
26 views

Somatosensory evoked potentials

I am wondering what the best EEG recording montage is to use for recording of electrically evoked somatosensory evoked potentials after median nerve stimulation?
anna's user avatar
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1 vote
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54 views

Assessments of depression: Does the rate of false positives vary between the qualification of those testing?

A friend recently asked me an interesting question to which I couldn't find the answer. Does the accuracy of depression assessments vary by the profession i.e. Nurse, GP Vs Clinical Psychologist, ...
Comte's user avatar
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1 vote
0 answers
34 views

Gamifying surveys by measuring the ability to discern popular taste

I am working on a crowdsourcing platform where participants are given a set of choices between two items (for instance, books or movies). Out of each pair, they are to select an item which they think ...
Jonas Arcangel's user avatar
1 vote
0 answers
61 views

How to assess the rationality of real-life decisions?

I am looking for scales that measure the extent to which the process by which a person arrived at a real-life decision conformed to the principles of decision theory. I am specifically interested in ...
Falk's user avatar
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1 vote
0 answers
43 views

How effective is assertiveness training?

Has there been empirical research on the effectiveness of assertiveness training? What does it say about its effectiveness?
Seno's user avatar
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1 vote
0 answers
34 views

Creating non-linear neuron model from linear and actual rates

In "Theoretical Neuroscience" by Dayan and Abbott, section 2.2 "Estimating Firing Rates", it describes how by using a linear model in combination with averaged experimental firing rates you can ...
Seanny123's user avatar
  • 8,853
1 vote
0 answers
43 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 ...
erkil1452's user avatar
1 vote
0 answers
60 views

What tradeoffs are there between internal and external validity?

I was reading through an article about research design. The authors gave an example on the relation between internal and external validity which I thought might be an important area of consideration ...
Derrick Mah's user avatar
0 votes
0 answers
5 views

Has it ever been quantified the extent to which “culture” influences specifically what kinds of research gets done?

I would like to know about a technique for showing rigorously and quantitatively the way in which certain kinds of scientific research (in psychology) never get done because of cultural reasons, for ...
Julius H.'s user avatar
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0 votes
0 answers
35 views

What differences are between behavioralism and functionalism?

Is it correct that behavioralism and functionalism are similar in that they both treat brain or something else as a blackbox, and are only concerned about the relationships between inputs and outputs ...
Tim's user avatar
  • 121
0 votes
0 answers
18 views

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
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