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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Where is data on percentiles of the Big Five Inventory?

I have raw scores (e.g., sums of the relevant question scores for each measure) from the Big Five Inventory (BFI). I would like to convert these into percentiles for interpretation. Where are the data ...
BigMistake's user avatar
1 vote
1 answer
50 views

How does one validate a psychometric instrument

Any science has to be built on the scientific method. While in all fields there are novel phenomena that are not yet understood, an essential step to doing robust science is understanding how one's ...
Aleksejs Fomins's user avatar
2 votes
0 answers
30 views

Equating between short form and long form of the same instrument

I have encountered several instruments in psychology and related fields where we have multiple versions of the same instrument, specifically a short form and a long form. For instance, the patient ...
Eric Boorman's user avatar
0 votes
0 answers
56 views

Does such a theory exist?

Is there any model that describes how people behave while taking compositions of emotions into account? Such as, how different the behavior of a person is when he is (10% angry + 50% sad + 40% some ...
Shadman Sakib's user avatar
3 votes
1 answer
68 views

Scientific references and experimental protocols for identifying emotions in animals other than mammals?

QUESTION: Which experimental protocols can be used to study formally the presence or absence of emotions in non verbal beings, such as other animals than humans? Is there a survey about such results ...
J..y B..y's user avatar
  • 807
2 votes
1 answer
52 views

Best practice for comparing data between completers and non-completers?

I conducted a study which collected data on a brief one-time intervention at 3 timepoints (pre, post, and one-week follow-up). There were some participants who dropped out between these 3 timepoints. ...
catll0's user avatar
  • 21
1 vote
1 answer
26 views

Preregistration questions sample/outliers

HI I'm extremely new to research and my professor asked me to complete a preregistration for a project he wants to co author. However, I am stuck because the preregistration he asked me to complete ...
user33578's user avatar
1 vote
0 answers
36 views

Are there easy ways to measure own cognitive fitness daily? [closed]

I noticed I have been having quite intense ups and downs in my ability to stay focused and to solve various brain-involving tasks. It seems like these fluctuations have some time-of-day cycle (I hope ...
psliwa's user avatar
  • 111
1 vote
0 answers
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MNI vs. study-specific template in ABIDE ASD datasets

I'm new to MRI analysis and don't think I can properly gauge the implications to subsequent spatial analysis of performing registration to the MNI152 template. The form of analysis I'm conducting ...
Lambda's user avatar
  • 199
2 votes
0 answers
39 views

How are answers on verbal IQ subtests evaluated?

I spoke to a clinical psychologist recently about how verbal subtests on IQ tests are evaluated. She said that answers regarding the meaning of a word were evaluated based on whether or not they were ...
user110391's user avatar
0 votes
0 answers
22 views

Interpreting Negative Z-Scores Gene Expression

When examining ISH heatmaps of gene expression in the brain, I'm typically looking for above-average expression in the form of high z-scores but have also encountered imaging with negative z-scores. ...
Lambda's user avatar
  • 199
2 votes
0 answers
33 views

Can you use a test for clinical purposes if it is available in a public thesis?

The situation is as follows: say you find a Phd/ MSc thesis on a university's online library. In the Appendix part of the thesis, there is a copy of the psychometric tools used, for e.g the digit span ...
Elles's user avatar
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1 vote
1 answer
1k views

Do people with ADHD typically underperform on IQ tests? [duplicate]

To me, there seems to be a great disagreement about what IQ is supposed to measure. I have heard about psychologists taking ADHD/depression/other mental illnesses into account when deciding on the ...
user110391's user avatar
0 votes
0 answers
50 views

Recomendations for an intelligence test

Is there any culture-fair intelligence test, that is not of public knowledge (that is, the answers can be easily viewed online, or has been used extensively to the point it lacks validity), that doesn'...
gabriel's user avatar
2 votes
0 answers
22 views

Reference tools to measure propensity to cooperate and to forgive?

QUESTION: Where can I find reference tools (e.g. questionnaires) to measure the psychological propensity to adopt some behaviors, such as cooperation, cheating and forgiveness? BACKGROUND: The 2017 &...
J..y B..y's user avatar
  • 807
2 votes
0 answers
17 views

Question about How to assign the order of vertices of a pial surface in FreeSurfer

I'm a CIVET user but I recently started to use FreeSurfer. As far as I know, for a surface from CIVET, its vertices are ordered by upsampling a polygon. So I could access downsampled surface by ...
yanghee Im's user avatar
1 vote
0 answers
17 views

Health-Related Quality of Life (HRQoL) questionnaire for 6-year olds

I am looking for a cross-national Health-Related Quality of Life (HRQoL) for 6-year olds. The closest I found is the KidScreen project: Three versions of the KIDSCREEN questionnaire are targeted at ...
miguelmorin's user avatar
1 vote
1 answer
85 views

Response bias in physical and sexual attraction/attractiveness surveys

There are a few potential sources of response bias in surveys intended to measure attractiveness levels of individuals, especially in the context of differences in personal qualities of judges. ...
rus9384's user avatar
  • 567
3 votes
1 answer
93 views

Using Exploratory Factor Analysis for Items That Belong to Different Scales

I have a quick question about factor analysis from different scales. Is it advisable to use, conjunctly, items from various measures? For example, say that I want to evaluate factors that most ...
JerBear's user avatar
  • 31
3 votes
1 answer
711 views

10-BFI test score compiling

I am a physicist and I am doing a survey about musical genre preferences and correlation with a field of study. I want to interpret the results from this test I don't know how to interpret the legend,...
Giovanni's user avatar
6 votes
2 answers
667 views

Is anything known about pygmy intelligence?

I read that pygmies split from other human lineages pretty long ago, before modern humans appeared. That, and the fact that they still remain hunter-gatherers, makes me suspect that they might still ...
Wolphram jonny's user avatar
2 votes
0 answers
47 views

Can the items of UCLA Loneliness Scale not be called symptoms?

When did the question raise? I am working on the data of 8 itemed UCLA Loneliness (ULS-8) [1] and 9 itemed PHQ [2] (PHQ-9) scales. I found that in the study of PHQ-9 [2], the authors mentioned the 9 ...
Md Sabbir Ahmed's user avatar
2 votes
0 answers
17 views

How are Big 5 questionnaires made to reflect adjective-derived traits?

My understanding is that the Big 5 traits are derived from the factor analysis (PCA?) of vectors of adjectives, choosing the 5 most important factors. I guess that researchers then came up with ...
zxcv's user avatar
  • 21
2 votes
1 answer
302 views

How to evaluate the convergence of a staircase?

I have a 2AFC staircase, with transformed up and down method (2up 1 down) or (2down 1 up), with equal step size (at the beginning there are higher step sizes, at the end there are the lower value). ...
Mik's user avatar
  • 21
2 votes
0 answers
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
  • 305
2 votes
2 answers
70 views

Are there methods of evaluating the effects of psychoactive drugs that use free-form verbal reports?

If one wished to study the effects of a psychoactive drug such as LSD, what strikes me as a natural primary starting point would be to ask participants what they actually experienced. For example, ...
Julius Hamilton's user avatar
0 votes
0 answers
417 views

How to determine the sample size for a Confirmatory Factor Analysis CFA

I'm in the process of developing a scale. Overall, my question is how do I determine how many participants to include in my sample for the first Confirmatory Factor Analysis procedure? More ...
stephan_phd's user avatar
0 votes
0 answers
46 views

Any good research on the comparative rates of CSA in different populations? (religious vs none religious, Mormon, catholic, etc)

I'm wondering if there is any good research on the rates of CSA in different populations.
JCool's user avatar
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1 vote
0 answers
38 views

What is the causal relationship between Adaptability and long term life success? [closed]

Adhering to the Big Five: Plasticity, being comprised of openness to experiences and extraversion, involves dispositions toward exploration, flexibility, adapting to novel situations, questioning ...
John's user avatar
  • 11
0 votes
0 answers
681 views

Name for the ability to accept and react positively to challenges?

I am surveying early-stage entrepreneurs. The phenomenon I really want is their ability to clearly see, accept, and positively act on, difficulties -- maybe with their company, maybe their product, ...
one_observation's user avatar
0 votes
1 answer
98 views

What are the ways to measure stress levels regularly at home?

What methods are available for collecting data on a human's stress levels? That is, suppose someone wanted to collect weekly/daily/hourly readings of their stress levels (e.g. in order to use the data ...
brikas's user avatar
  • 113
4 votes
0 answers
462 views

Do you need need to have an above average IQ in order to have a reasonable chance of successful career in STEM fields?

Particularly engineering, computer science, math. I came across this quote from someone who specializes in psychometrics in response to this question. Is it scientifically proven if hard work in STEM ...
Eric Gumba's user avatar
0 votes
0 answers
97 views

How was the infant IQ test applied to Koko?

Apparently, a Gorilla named Koko took a number of IQ tests and scored an average of 80, their full range of scores being 70 to 95. The test used was the Cattell Infant Intelligence Scale. I don't ...
A. Kvåle's user avatar
  • 271
1 vote
0 answers
28 views

What Action Units (AU) from the FACS can be combined together independetly of each other?

There exist many "impossible" combinations of AUs, let's say 45+46 for example or 18+27 etc. i.e. combinations of AU that can not possibly be expressed because they "occupy" the ...
autism01's user avatar
4 votes
1 answer
135 views

Are there results on the null hypothesis of the "surgeon operating on my son" question?

There is a common question used to demonstrate the power of implicit assumptions about gender roles in our society. Including it here for reference: A man and his son had a terrible car accident and ...
Apple's user avatar
  • 143
0 votes
0 answers
39 views

Competitiveness Analysis

I have developed a fitness website where users can exercise in a video call. My claim is that the website i designed increases the level of competition when exercising together with a peer compared to ...
LELOUCH's user avatar
6 votes
0 answers
229 views

Can our dreams tell us anything useful about ourselves?

This question is related to What is the current "accepted" science behind dream interpretation?, but here I am asking something more specific. Dream reports, also known as sleep mentation ...
Arnon Weinberg's user avatar
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4 votes
1 answer
99 views

Isn't fluid intelligence necessarily influenced by crystallized intelligence?

In this article, it is said: Conversely, Gf [general fluid intelligence] represents the ability to employ a type of mental operation to independently reason and solve novel problems; it does not ...
A. Kvåle's user avatar
  • 271
0 votes
0 answers
44 views

gender related activism scale

I'm looking for a self-report measure that assesses involvement and interest in activism that centers around gender equity, including (but not limited to) topics like gender equality, segregation and ...
stephan_phd's user avatar
2 votes
0 answers
30 views

Making a risk assessment type scale using existing scales

I am trying to make a risk assessment type scale that measures the likelihood/risk of someone experiencing a psychological disorder in a setting. There are about 10 factors (e.g., gender, sleep ...
psychstudent's user avatar
3 votes
1 answer
43 views

Are dedicated response boxes really better in precision than regular keyboards?

There are various (very pricey) commercial response boxes or pads (perhaps most notably Cedrus) that purportedly offer higher precision than regular keyboards. (Note that my question focuses on ...
gaspar's user avatar
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3 votes
0 answers
95 views

Do different ethnic groups have the same standard deviation of the IQ distribution?

There is a lot of research suggesting that different ethnic groups either within US or worldwide if all plotted together would have distributions of IQ with different averages. The reasons for that ...
chugeth's user avatar
  • 31
2 votes
1 answer
1k views

What is verbal memory useful for?

A friend of mine did the Verbal Memory Test at http://humanbenchmark.com/ and got an extremely high score (almost 300 words). English is not his first language and he knew the meaning of only about ...
user avatar
6 votes
0 answers
109 views

Is there a correlation between long-term memory and academic success in STEM?

There are underlying fundamentals and first principles, especially in STEM that continue to be built upon but can get neglected and forgotten over time without practice. Obviously having a great ...
Epsilon_Delta's user avatar
8 votes
2 answers
971 views

Is there a theoretical maximum for IQ?

In "Eugenics: A Reassessment" Richard Lynn writes: The intelligence level of the population would be expected to stabilize at its theoretical maximum of around 200 after six or seven ...
asahi's user avatar
  • 81
2 votes
0 answers
36 views

What are standardized and scalable methods to assess free recall?

In cognitive psychology and education literature, free recall test is usually compared with recognition test (through multiple-choice questions) and the former is favored as a more reliable measure of ...
user2521204's user avatar
2 votes
1 answer
67 views

What measure or criteria wording can be used to track trends in p factor?

Background: you can use factor analysis on mental illness to get a general psychopathology factor, like the g factor in intelligence but instead a general mental illness factor. https://www.ncbi.nlm....
Jotto's user avatar
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0 votes
0 answers
46 views

What are the values of the absolute intracellular and absolute extracellular potentials in a neuron?

Most texts on neurons give the value of the membrane potential and do not state the absolute values of the intracellular and extracellular potentials in a neuron. I understand that this is because the ...
Toba's user avatar
  • 111
1 vote
0 answers
73 views

What is the minimum sample size for establishing the construct and especially concurrent validity of an intelligence test?

For example, the Shipley has a sample size of 263 for concurrent validity and I'm wondering if this is enough. Also, this is a stretch, but does anyone know the concurrent validity of the Figure ...
gndz's user avatar
  • 117
0 votes
1 answer
149 views

Psychometric scales of gender

I have never read any study that has used a psychometric scale to find out the respondent's gender identity, sexual orientation or both. This makes me wonder if there are such scales or not, or if ...
Ishan Kashyap Hazarika's user avatar

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