Questions tagged [measurement]

For questions about techniques for measuring psychological and neural properties. Includes the measurement of knowledge, abilities, attitudes, and personality traits, as well as neural structure, organization, activity, and complexity.

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2
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1answer
38 views

What is the voltage that an intracortical electrode is expected to receive?

When a neuron fires, an action potential of about 100 mV is generated. An electrode measuring brain activity will record several hundreds neurons at a time. How much voltage an electrode directly in ...
6
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4answers
869 views

Getting started with EEG data

I want to get started with getting signals from EEG and learning on how I can read data. I have some programming skills, so designing a database and manipulating data with ruby (python seems also cool,...
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0answers
51 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 ...
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0answers
32 views

Are there any approaches to measuring “physical”/“neurophysiological” aspects of one's intellectual tone/state of fluid intelligence?

Is it possible to measure/approximate/estimate intelligence with a physiological metric? What I mean is, if I put it correctly: to measure/estimate short-term memory capacity/long-term memory ...
3
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2answers
55 views

How long does it take to decide for an multiple choice option with increasing number of choices?

I am trying to estimate the duration of an empirical experiment. In that experiment, the participant has to progress through as many trials as possible, and every trial is a simple multiple choice ...
2
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1answer
1k views

What is the difference between facets and factors?

I am wondering whether there is a difference between factors and facets. Concretely, I am doing a research about transformational leadership. My questionnaire has 8 factors which is based on a ...
7
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1answer
192 views

What was her/his name again…ahh got it!

You all know the situation described in the title. You forgot something and start to search your memory and then after quite a while it jumps right in front of you, out of nowhere. My questions are: ...
3
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0answers
150 views

Exercise and physical activity questionnaire

I'm wondering if there exists a validated questionnaire designed to assess the duration/intensity/type of physical activity someone has taken part in over the past 1-3 days? I've seen many ...
2
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0answers
20 views

How do psychometric employee screening tests work and how can students tackle them? [closed]

I've given several psychometric tests for various companies without giving it a second thought but now that I think about it, it seems quite deep and fascinating. I'd like to understand, if anyone ...
1
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0answers
18 views

Scales in Oral vs. Paper Surveys

I am designing a survey that will have to be administered over the phone. While I have used 7-point Likerts on many occasions, saying "On a scale of one to seven" out loud makes it seem, suddenly, ...
15
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2answers
1k views

What is the support for a global personality factor?

The Big 5 is a popular framework for describing major factors of individual differences in personality. More recently, I've been hearing people talking about the utility of conceptualising personality ...
1
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0answers
36 views

How effective is assertiveness training?

Has there been empirical research on the effectiveness of assertiveness training? What does it say about its effectiveness?
4
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1answer
57 views

Manipulating the difficulty of guessing a correlation

I am trying to generate correlations between random variables (two dimensional) with a defined linear relationship (in the $r$ sense), but with different visual patterns when plotted. I am trying to ...
4
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1answer
428 views

Where can I obtain a button box for reaction-time measurements under a Windows OS?

I need a button box / response box to hook up with a laptop computer and Windows Operating System for a reaction time study. A simple box will suffice and I do not need more than two buttons. I need a ...
1
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2answers
451 views

How to measure visual salience quantitatively

Salience makes objects pop-up from their surrounding and immediately attract our attention. A salient object in the visual domain would, e.g., be a red dot among white ones. We can sometimes ...
2
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0answers
73 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 ...
4
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1answer
296 views

How does one make a decision between different cognitive tests for the same construct?

I would like to measure peak cognitive performance in healthy individuals, for situation awareness, reaction time, visuo-spatial processing etc. I am interested in both within-subject and between-...
-1
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2answers
125 views

Human brain v/s computer: speed comparison?

We can't compute (speaking of some of the functions a computer can perform ) as fast as a computer. Where does this shortcoming stem from- working memory or clock frequency perhaps comparable to the ...
7
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3answers
242 views

Suggestion for wearable EEG headset

We need wearable EEG headset with raw data output accessible from various platforms. I heard that devices like that have commonly the output encoded and available adapters are designed for one or just ...
1
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0answers
28 views

Brain cell temperature [closed]

Given: a brain cell has an average temperature, T. If: perpetual brain activity pattern, X ; has an average conductive resistance, R; Therefore: Could it be rationally assumed that activity ...
1
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1answer
58 views

What is the optimal mean correct on a multiple choice test in order to maximise the measurement of individual differences?

What is the optimal mean correct on a multiple choice test item in order to maximise the measurement of individual differences?
12
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4answers
3k 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 ...
2
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0answers
27 views

Self-Perceived Quality of Life based on operation success chance

I heard about this method in a psychology lecture once: let's say that a person has some sort of chronic illness, and they are offered an operation to cure them. Then, the patient is asked about what ...
4
votes
1answer
90 views

Are there any cognitive tests, or test suites, available on the Android?

Are there any cognitive tests, or test suites, available on the Android? I'm thinking something like quantified-mind.com but for android. The closest I've been able to find is Brainturk Brain Training,...
2
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0answers
74 views

Can a multiple choice test reliably measure decision making speed?

Are there any studies showing that there is a direct connection (or a lack of a connection) between performance on a speeded, written, multiple choice test, and making quick decisions during a ...
7
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1answer
2k views

How to measure stress quantitatively?

I am wondering what the most straightforward way is to measure stress levels objectively and quantitatively *, and specifically, cognitive load. I am open to suggestions, but my understanding is that ...
14
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2answers
8k views

What transient factors affect performance on IQ tests?

While performance on intelligence tests aim to measure an underlying relatively stable trait, there are presumably a range of transient factors that could temporarily lower or possibly even raise ...
6
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1answer
99 views

Why compare a target group to a control group when population norms are available?

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 ...
2
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1answer
106 views

Peer relationships measurement

Is there a method for measuring peer relationships in university students (e.g., a questionnaire)? I am looking for a questionnaire that can be used to asses the level of peer relationship among ...
11
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2answers
12k views

Which neurotransmitters can be measured in a living human brain?

I'm interested in learning more about the modern techniques that are used for scientific studies of neurotransmitters in the living human brain. As far as I know, there are 4 neuromodulator systems ...
3
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2answers
58 views

Is there a term for a measure in which an extremely high or low score is considered bad?

I'm writing up the results of a measure of emotional management, and I'm hypothesising that under- or over-management of emotions leads to negative consequences. I'm looking for a term which ...
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0answers
34 views

How to interpret strong, significant correlations between dimensions on a measure?

I have been provided datasets from two questionnaires, with the aim of exploring any relationships between the factors measured by one, and factors measured by the other. One questionnaire looks at ...
3
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2answers
40 views

Models relating neuron firing to oscillatory dynamics

Many papers published seem to focused on oscillations to characterize synchronisation and communication between different brain areas. For example, this paper from Voytek et. al where communication ...
5
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2answers
419 views

Component naming of MEG vs. EEG

My question is why we use P and N for naming positive and negative EEG component(for instance N170 or P100) but for MEG data we use M in both case, I mean M170 and M100 in this example?
9
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1answer
1k views

Why are disorders discrete?

Disorders are usually discrete. For example, if you are given a test for, say, ADHD, they are usually only two results "you have ADHD" or "you don't have ADHD". Autism is treated as a spectrum, but ...
11
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2answers
570 views

What computerized EEG analysis algorithms are there?

I got a commercial-grade EEG headband and am trying to look at the data it outputs. The headband quantifies raw EEG signal from a single forehead dry sensor into a range of EEG bands (alpha, beta, etc)...
5
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3answers
889 views

Can anyone provide a modern source for the average college student IQ of 115?

I've read in various places that the average college student IQ is about 115, and the various estimations of IQ by college major reached by converting SAT to IQ all use 115 as the starting point for ...
1
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0answers
30 views

What is the relationship with power, justice, and respect?

King has power King are respected (people bow to them) Just king are respected more than unjust king Just laws are respected more than unjust laws. What are the relationship of that? Is respect ...
5
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3answers
318 views

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 ...
3
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1answer
288 views

How to build a high sensitivity EEG headset for continual monitoring?

After having a conversation with a couple of the more popular "consumer" level EEG makers such as Versus, I have found that their monitoring abilities are either ...
3
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1answer
162 views

How liking and disliking mechanism is developed? [duplicate]

Every one likes different things, places, people, colors, flowers etc. I am interested to know how this mechanism is developed in individuals. If we suppose that it is started from home. Then why ...
2
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0answers
152 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 ...
4
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1answer
524 views

Quantifying chromatic adaptations made by the brain

What are the ways one can use to measure the kind of adaptations done by the brain to provide colour constancy? Has this been done before?
2
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1answer
1k views

Do online mental age tests have any scientific validity?

If you google for 'mental age calculator', you can find several tests that claim being able to assess your mental age, as opposed to your chronological age. Is 'mental age' a valid scientific ...
5
votes
1answer
109 views

Neurophysiological indications of focus and motivation

Is there any way to detect a subject being focused or highly motivated (assuming that these two states are essentially the same) using any sort of external detection, such as fMRI or EEG? How would ...
5
votes
1answer
69 views

Can we use a scale even if one of the answer levels was not added?

I have a set of 20 participants for a study who were given a 7-point Likert scale that was made incorrectly by a graduate student. The student accidentally did not add the 6th answer level. The scale ...
2
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0answers
93 views

How can Bayesian inference improve upon logistic regression in incorporating psychometric data?

In order to estimate probability of default, banks and other financial institutions have often used logistic regression based on data involving credit history. Suppose an entrepreneur or borrower ...
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0answers
28 views

Is it ok to use test's sensitivity and specificity from other countries? [closed]

I want to calculate likelihood ratios of test scores in clinical psychological assessment setting. In my country, validation studies for many common used tests are missing or information about ...
2
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0answers
45 views

Have there been tests used to measure one's perception of how creative something is? [duplicate]

I'm trying to think of ways to 'measure' creativity from an objective standpoint. One way that I can think of is to show multiple different 'creations' to observers and to ask them to rate the ...
22
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3answers
15k views

How to reliably measure working memory capacity?

The capacity of human working memory is subject to individual differences. The number of items or chunks a person can retain in their memory may, have profound effects on a variety of other cognitive ...