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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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Recent psychophysical studies using the "Method of Adjustment"?

The Method of Adjustment, devised by G.T. Fechner, is one of the three classical psychophysical procedures used to examine perceptual performance. It came to fame through early studies of visual ...
Björn Friedrich'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
2 votes
2 answers
1k views

How does one identify relevant variables when performing research on perception?

Suppose, hypothetically, that I wanted to do a blind taste test into preference for Coke or Pepsi. I organize hundreds of volunteers and find that a certain group prefers one and another group the ...
Teusz's user avatar
  • 249
6 votes
2 answers
106 views

Does the International Affective Picture System (IAPS) contain weapon stimuli?

I'm looking to use the IAPS for my research, but I specifically need to use images of/or containing weapons. Does anyone know if IAPS has any such stimuli, and, if so, roughly how many?
user9702's user avatar
2 votes
1 answer
234 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
4 votes
0 answers
139 views

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
4 votes
1 answer
5k views

What can clinical psychologists do that psychiatrists can't do?

From Yahoo Answers: For example, I know that psychiatrists can prescribe medicine and psychologists CAN'T, but are there any things that clinical psychologists are specialised in that ...
BCLC's user avatar
  • 707
4 votes
1 answer
221 views

How to examine person's awareness of a certain topic?

I am conducting a case study on the topic of refugees and asylum seekers. My particular interest is: How aware is my test subject of the reasons (political persecution, famine, war, ...) why these ...
Stefan Surkamp's user avatar
4 votes
2 answers
450 views

How do you analyse visual analogue scales with an ambiguous response?

For example, I might ask participants to complete a visual analogue scale for pain. They would be given a line that is 100mm long, and one end says 0 (No pain) and the other end says 100 (worst ...
m_moth's user avatar
  • 43
3 votes
2 answers
28k views

How is doing a manipulation check different from doing the analysis on the main dependent variable?

How is doing a so-called manipulation check (i.e. checking to see whether the different groups actually differ for different levels of the independent variable) different from doing - as a main ...
z8080's user avatar
  • 919
1 vote
1 answer
114 views

How does one respond to an ADD/ADHD diagnosis of one's self or one's child? [closed]

I read: Is ADHD even a thing? This kind of question can be offensive to some. The same kind of thing can be applied to other conditions: Is depression even a thing? Or are they just ...
Red Rackham's user avatar
-1 votes
1 answer
138 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 ...
Maximus S's user avatar
3 votes
0 answers
23 views

Is perceived time compressed or expanded while dreaming? (or does it match reality) [duplicate]

I often dream long extended dreams. Sometimes I wonder if the timeline of the story of my dream occurs compressed, in a moment, or other times extended slowly over a long duration. Is there any way ...
makerofthings7's user avatar
9 votes
2 answers
424 views

How do cognitive scientists measure creativity?

Einstein said once something like creativity is more important than intelligence. Intelligence as it is measured is really one's speed and efficiency at processing information. How one processes the ...
201044's user avatar
  • 301
3 votes
1 answer
821 views

Tests of Semantic Memory suitable for 10 to 18 year old

I'm trying to find a test of semantic memory for students. We're working on a programme to explore the impacts of exposure to nature on a student's academic abilities (hoping to pique teachers ...
ChrisJ's user avatar
  • 175
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
7 votes
1 answer
79 views

Classical conditioning paradigm for hippocampal learning

I wanted to know what a suitable classical conditioning experiment would be to analyze learning and memory capabilities in rodent models with respect to hippocampal long-term potentiation (LTP). For ...
curious's user avatar
  • 71
4 votes
1 answer
53 views

Is there a way to have strangers tag my images?

I would have liked to know what thoughts people get from various images, so that I could trigger targeted thought patterns with images. An easy way to do this would be if I could find an online ...
Berit Larsen's user avatar
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4 votes
1 answer
235 views

How did Fechner justify the assumption that the just-noticeable-difference in sensation is constant?

As stated here on Wikipedia: 1 Weber's law states that the-just-noticeable-difference (JND) of an intensity of a stimuli divided by the intensity of that stimuli is always constant. Mathematically: ...
Omar Nagib's user avatar
9 votes
3 answers
979 views

What are some examples of controversial themes in psychology?

There are a number of themes that are controversial (provoke debate, are unsettled, polarize opinion, or are reflected by a range of positions) in psychology. One example involves nature vs. nurture: ...
Justin's user avatar
  • 296
9 votes
1 answer
474 views

The mind as a state of matter or physical system?

What examples of attempts to formalize a principled physical basis for consciousness and/or a general theory of the mind exist? I read a fascinating ArXiV preprint last year called Consciousness as a ...
Christian Hummeluhr's user avatar
6 votes
1 answer
427 views

How can we realize when a sociological question is impossible to answer?

In my language there is a famous common sense statement which tells the populations are swinging back and forth from one extreme to the other. The idea behind is that, at a sociological level, the ...
Revious's user avatar
  • 1,429
3 votes
1 answer
66 views

Where can I find stimuli for steady-state visually-evoked potentials?

I am a student working on a project which deals with Steady State Visually-Evoked Potentials (SSVEP) Stimuator. Does anybody know where can I find stimuli (checkerboard or single graphic) as a video ...
check's user avatar
  • 31
4 votes
1 answer
71 views

How to obtain well-written demographic items?

I've noticed over the years supervising student projects that it is actually surprisingly difficult to write good demographic items. Specifically, I'm thinking about questions related to gender, age, ...
Jeromy Anglim's user avatar
3 votes
2 answers
2k views

How to know whether a methodological technique is quantitative or qualitative?

How do you classify NASA TLX, ANOVA, Matched Pair T-Test, Self-Efficacy Scale, and System Usability Scale? Are these types of data analysis considered quantitative or qualitative? Please answer ...
Susu Metric's user avatar
16 votes
2 answers
5k views

What is the relation between measures, constructs and concepts?

It is uncontroversial to say that the cognitive sciences do not exclusively deal with directly observable phenomena, but nonetheless aim to study the physical causes of behavior and cognition ...
Christian Hummeluhr's user avatar
7 votes
1 answer
757 views

How can items from a general self-esteem/efficacy measure be changed to measure context specific self-esteem/efficacy?

I am very interested in a survey employing a Likert type scale in my research. I have come across the Rosenberg Self-Esteem Scale. I would like to use this scale to get a sense of how subjects feel ...
Susu Metric's user avatar
13 votes
4 answers
5k views

How valid are reaction times collected from online studies?

Online studies promise the possibility of greatly increased numbers of and variability in populations to study, but there are many potential concerns and need for validation, and diving in head first ...
Christian Hummeluhr's user avatar
7 votes
1 answer
7k views

What are the pros and cons of the hot sauce paradigm to measure aggression?

The hot sauce paradigm is a way to measure aggressive behavior in the lab. Participants are asked to give a portion of hot sauce to another person (who they know hates hot sauce) and who will have to ...
user avatar
4 votes
1 answer
627 views

How to measure precision in classical test theory framework?

What methods or approaches exist or might be developed to measure precision of measurement in a classical test theory framework? Standards for Educational and Psychological Testing (American ...
Joel W's user avatar
  • 121
4 votes
1 answer
48 views

Is there a downside to using more than the typical 20/40 trials in an IAT?

Most resources mention using 20 'practice' trials categorizing both targets and attributes, followed by 40 'real' trials categorizing both targets and attributes. Note that this is after practicing ...
David's user avatar
  • 41
4 votes
3 answers
523 views

Is there a database of disgusting images for stimuli for experimental study of disgust?

I'm looking for a set of images that evoke a disgust reaction. In particular, I'm looking for disgusting objects (e.g. feces, maggots). Is there a database of images like this? It would be especially ...
Josh's user avatar
  • 5,904
7 votes
1 answer
175 views

What are the most used statistical methods in WM research besides (generalized) linear modeling?

I mean, by cognitive psychologists. I skimmed over a few articles from Journal of Cognitive Neuroscience and Trends in Cognitive Science and concluded that ANOVAs and t-tests are mostly used (without ...
Lil'Lobster's user avatar
4 votes
1 answer
65 views

How to engage in the conceptualization process to measure a psychological construct such as femininity?

I am in class for Research Methods and I am having troubles with a conceptualizations process. The question is to describe the conceptualization process you would employ to measure femininity. How ...
Blair F.'s user avatar
4 votes
2 answers
239 views

Colorado Boulder study about brain morphometric measures of Cannabis users methodologically weak?

I'm relating to this study: http://www.jneurosci.org/content/35/4/1505.short The researchers found no differences in subcortical brain structures for daily Cannabis users vs. controls. However the ...
CuriousIndeed's user avatar
10 votes
3 answers
14k views

Calculating d-prime

I'm currently working on a research that has to use and calculate D Prime values for a task where subjects are presented an image at different speeds and they have to report if they saw the image or ...
TiasNM's user avatar
  • 101
1 vote
1 answer
1k views

What's the difference between inductive and deductive research in cog sci?

I'm not really clear on what the implications are for inductive vs deductive research methodology and analysis. Any examples or input would be great!
Teusz's user avatar
  • 249
1 vote
0 answers
46 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 ...
matousc's user avatar
  • 211
3 votes
2 answers
79 views

What speech synthesis software is suitable for research?

I'm looking for recommendations for speech synthesis software that can be used to generate audio stimuli. The audio stimuli that I'm trying to generate will be long sequences of isolated syllables. ...
Josh's user avatar
  • 5,904
3 votes
1 answer
337 views

Dichotic listening tasks and crosstalk

In a dichotic listening task where participants listen to different (frequency-wise) musical tones through headphones, is cross talk to the contralateral cochlea of each ear through bone conduction a ...
Lazaros Mitskopoulos's user avatar
3 votes
0 answers
109 views

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
  • 31
4 votes
1 answer
494 views

Participant / Subject Pool Management Solutions

I am searching for a subject pool management system for human subject research. Almost all institutions appear to use Sona-systems. Do any alternatives exist?
Levi's user avatar
  • 141
6 votes
1 answer
3k views

How is the signal-to-noise ratio of an event-related-potential measured?

I often encounter publications where the authors try to "increase the SNR (signal-to-noise ratio) of electroencephalogram (EEG) signals". Some define a numeric value of SNR of EEG signals, but I am ...
Learner's user avatar
  • 573
11 votes
1 answer
240 views

Is there a report of a successfully EEG-Based Brain-Computer Interface (BCI) using image training?

Currently I am involved in constructing an EEG-Based BCI. The goal of the BCI is to control which light in a series of lightbulbs lights up. The plan is to use different images (i.e. a flower versus ...
Fraïssé's user avatar
  • 359
3 votes
0 answers
86 views

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
  • 211
4 votes
1 answer
98 views

A subtle test for color-blindness

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested? E.g. showing the person cards with colored dots like depicted here is ...
Omnibus's user avatar
  • 41
5 votes
1 answer
754 views

Do unequal step sizes in staircase procedure affect the convergence?

Consider a psychophysics procedure using a standard staircase method to adaptively find the threshold, using a 2AFC paradigm and a 1-up, 3-down method to determine the 75% threshold. Now suppose the ...
AliceD's user avatar
  • 20.7k
2 votes
2 answers
84 views

How to study the effect of sustained exercise and sport on well-being?

I´d like to make a little case study about the impact of including regular weight training in life. I know one man who is going to start to excercise regularly and I have an opportunity to talk with ...
KlaraV's user avatar
  • 139
3 votes
2 answers
179 views

How to test for malingering in criminals trying to deny capacity for criminal responsibility?

Psychiatrists and psychologists are often tasked with assessing a criminal defendant's competency to stand trial or his capacity for criminal responsibility. What objective tests are useful for ...
GAS4's user avatar
  • 31
11 votes
2 answers
7k views

Which statistical tests to use when analyzing NASA TLX?

The NASA Task Load Index (NASA-TLX) is a subjective, multidimensional assessment tool that rates perceived workload. A set of different scales (Mental Demand, Physical Demand, Temporal Demand, ...
Steven Jeuris's user avatar
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