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Questions tagged [performance]

Questions relating to the enactment of tasks within society and how this reflects on our internal characteristics. Tests and other assessments can act as measures of performance.

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Are there studies that compare the accuracy of forecasters that are asked to state probabilities vs. forecasters that are asked to state odds?

The Good Judgement project asks it's forecasters to estimate the likelihood of events occurring by asking them for probabilities (20%, 60%...). Sport betting usually communicates the odds of an event (...
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Is there a basic mathematical relationship between IQ and learning speed?

Is there a basic mathematical relationship between IQ and learning speed? ... such as linear, exponential, etc? For example, if some number of people with an approximate IQ of 100 (95-105) take X ...
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5answers
433 views

Why can't we use 100% of the brain in a certain moment?

I know it's a myth that we only use 10% of our brain, but the point is that we use less than 10% in any given moment; only by using different parts of our brain for various tasks over time do we ...
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3answers
3k views

Is there evidence that listening to music can aid/hinder concentration or performance?

I, like many computer programmers, love to listen to music while I work. I have always believed that music helps me stay focused and motivated, and improves my performance on many types of tasks, ...
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2answers
248 views

For an average adult, in general, if one knows they will wake up in the middle of a cycle--is it better to go to bed later?

Let us say that one consistently goes to sleep at the same time every day, and sets an alarm for the same duration of sleep 7 hours and 45 minutes (e.g., 10:45pm to 6:30am). One day, they get caught ...
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36 views

Predicting workplace performance of job applicants? [closed]

As an employer who interviews engineering candidates, I'm interested in using the state of the art findings in psychometrics/psychology to predict which candidates are the most likely to be successful....
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1answer
314 views

Is there a way to hasten recovery from sleep inertia?

Sleep inertia is a transitional state of lowered arousal occurring immediately after awakening from sleep and producing a temporary decrement in subsequent performance. (1) There is study ...
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2answers
462 views

Do ADHD drugs harm the brain?

Particularly, the amphetamine "vyvanse". If one was to take a 30mg dose once a day for 50+ years, would it damage brain function at all? Would the brain simply get used to the drug and become 100% ...
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1answer
99 views

Why do I perform better at rhythm games after a long period of not playing?

Every once in a while I decide to play Phase Shift (very similar to Guitar Hero). I might go weeks or months between plays, but when I return, I often break a high score within the first few songs I ...
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2answers
35k views

Does masturbation in men negatively affect cognitive processes?

Gary Wilson has mentioned that porn and masturbation is an addiction that negatively affect mental performance. Moreover, there is some "pseudo-science" claiming that abstaining from masturbation ...
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3answers
990 views

Can intense multitasking improve fluid intelligence/working memory?

The Dual N-Back task is the only task I'm aware of that has empirical support showing that it improves working memory. It appears to improve working memory through multitasking, although this ...
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3answers
561 views

What is the distribution of performance in academic programming subjects?

On Programmers SE there is a popular question about scientific evidence for whether some people either are or are not able to program. One person cites an unpublished manuscript by Dehnadi and ...
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2k views

Does individual work performance follow a Paretian distribution?

O'Boyle and Aguinis (2012) wrote a paper arguing that individual job performance follows a Paretian distribution rather than a normal distribution (put simply, a very long tail to the right, rather ...
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2answers
125 views

Efficiency of multitasking depending on task difficulty

How does the efficiency of multi-tasking differ by task type? My understanding is that multitasking impairs efficiency for cognitively challenging tasks. Does this apply to trivial tasks as well?
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39 views

Is there an inventory to measure competence in the workplace?

I'm currently doing a study where I chose to have HR management practitioners view a sample of resumes from applicants, and then have them give a competence score. I'm just not sure what kind of ...
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A framework for modeling tasks, behaviors and characteristics [closed]

I'm doing my master's thesis on evaluating startup team dynamics from an investors's perspective. To construct and argue the methods that I'm suggesting, I'd like to build a simple model of most ...
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1answer
118 views

Could the knowledge of the construct of self-efficacy affect the student's aptitude to a certain task?

I am a tutor for children with learning disabilities and i have read that they have lower levels of perceived self-efficacy than students without this learning disabilities. I decided to deepen the ...
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1answer
234 views

Yerkes-Dodson Law and Drugs

According to the Yerkes-Dodson Law, there is optimal point of arousal and performance. Suppose a person takes a stimulant such as Adderall. This would increase his arousal. However, it may increase ...
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1answer
76 views

Does distraction cause us to skip to the next step in a motor plan?

Often, if one is concentrating too hard on a particular task, it seems as though it's quite easy to skip to the next step of a plan of action. For example, a baseball infielder may attempt a throw to ...
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75 views

Interaction between caffeine intake and biorhythm on alertness

Throughout the day, people's wakefulness and attentiveness varies, as modulated by one's circadian biorhythm. Whereas in the morning people are less awake, just before noon and around 15:00 people ...
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1answer
1k views

How long can a person stay happy, excited and motivated about something new?

I'm interested in learning more about studies or experiments that determine how long a typical person can stay excited about something new: ...
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2answers
4k views

How long does it take to refocus after context switching?

Context switching has been highlighted for the toll it takes on productivity at great length, particularly by people who work in software and project management. Are there any psychology/...
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0answers
151 views

Grit — is it distinct from correlates of success?

There's been quite a splash in the field of psychology around the concept of grit introduced around 2007 (Wikipedia article). For example, the associated TED talk has been viewed more than 10 million ...
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2answers
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What is the most effective maximum work duration per day?

A related question asks about the best work-break schedule for an effective eight hour work day. This question presupposes that eight hours of work per day is a good duration and that all you need is ...
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1answer
497 views

How much sleep is needed for peak cognitive performance?

How much sleep is needed for peak cognitive performance? If some were to, for example, wake up one morning at 12:30PM, would a sleeping pill help obtain better sleep required for that performance the ...
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2answers
177 views

Can you practice and improve physical activities only by thinking?

By physical activities I mean any kind of task, work, sport, you have to use your body. Not always have the time to do some task or even the possibility (need some equipment, not great situation). I ...
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2answers
185 views

Does the “use it or loose it” principle apply to the brain?

Does not using the brain decreases mental functioning? If so, is it recommended to keep using the brain, for example by learning new things or engaging in challenging activities (puzzels, quizzes etc.)...
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1answer
47 views

Models of barriers to “Flow” (being in “the zone”)

This Wikipedia article is an excellent overview to the concept of Flow. The problem is, from personal experience, in one specific area, I think it's incomplete. To quote: Schaffer (2013) proposed ...
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1answer
394 views

How is “being in a flow” explained cognitively?

When wathcing the European Championship athletics, I hear many people talking about being in a "flow". Flow is defined as follows: Flow is an optimal psychological state that occurs when there is a ...
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0answers
74 views

What is the relationship between practice and performance of telephone call centre workers?

I am interested in modelling the relationship between practice and performance both in laboratory tasks and field settings. I was interested in what existing research has examined how the performance ...
2
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1answer
74 views

Does expecting to be in a safe situation elicit unsafe behavior? [closed]

When the traffic light is red you are aware that a car might comes rushing in. So you are extra careful and always check the street before you actual cross the street. But one the other hand if you ...
2
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1answer
37 views

Does the meta-analytic literature overestimate the relationship between conscientiousness and job performance?

There are quite a few meta-analyses of the relationship between personality and job performance (for a review, see Barrick & Mount, 2012; and specific meta-analyses: Barrick & Mount, 1991; ...
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2answers
75 views

Provable ROI for call center rest periods?

Think you can help make life better for a nation of call center workers? At a large insurance company, I used to work in the call center for both Auto Claims and then Homeowner Claims, before I was ...
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1answer
1k views

What are the effects of alcohol on muscle memory?

Muscle memory (also referred to as "motor memories") is a form of procedural memory, which is a form of implicit memory. I'm particularly interested in trained tasks like throwing a dart, shooting a ...
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2answers
306 views

What is the optimal exercise regime for improving cognitive functioning?

It seems that researchers agree that physical exercise increases cognitive abilities. This seems to work universally for all ages: children, adults and old people. It is suggested that everyone ...
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1answer
839 views

How to interpret intelligence test scores for an individual who has taken a test multiple times in quick succession?

Specific context: A test subject took the same Raven's Standard Progressive Matrices IQ test three times and first scored 115, then 107, and finally 143. The same test was taken three times within 3 ...
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1answer
781 views

Medium-term effects of polyphasic sleep on performance

Typical sleep patterns of one big block of 6 to 9 hours with no naps is usually referred to as monophasic sleep. A second natural sleep pattern is biphasic sleep which breaks up your sleep into two ...
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3answers
534 views

What are effective strategies for increasing concentration and motivation when doing seemingly passive activities such as reading journal articles?

Background Unfortunately I am not a specialist in Cognitive Science I am just a regular CS student who has big interest in cognitive science. I want to share with you some interesting observation I ...
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1answer
213 views

Sleep deprivation and task performance

Case: In case of an adult, the average adult sleep time required is 7.5 to 8 hours. Suppose the person (aged between 23-29) has slept only 6 hours, or less than the average time (7.5 to 8 hours). ...
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1answer
325 views

Solving T-shaped maze (probability learning): differences between rats and humans

From Jonah Lehrer's book "How We Decide", he mentions the experiments with rats and Yale undergraduates. I found the paper that (presumably) matches the experiment of rats. Brunswik, E. (1939). ...
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41 views

Theory about use of concept maps?

My background is Computing Science and I want to research how people use concept maps? By doing some google search I found the following link https://www.msu.edu/~luckie/ctools/ What I want to ...
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Standardizing sales data with dollar market data within USA [closed]

In the study of performance... One approach to standardizing sales data across different regions of the country may be to adjust for the relative wealth/purchasing power of the clientele in a given ...
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1answer
74 views

Performance of children at school in the morning

Our local council are changing the school day to 9:30 - 15:00 for my youngest son, my eldest in a different school starts at 8:20 and finishes at 15:20. I believe that children are more productive in ...
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0answers
60 views

How does motivation relate to performance and to fun and to recognition?

Many studies indicate that for tasks that require cognitive skills and creative thinking, monetary reward does not work to improve performance. Rather, we should give people purpose, autonomy and ...
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1answer
373 views

Can lucid dreaming detract from the recuperative effect of REM sleep?

Imagine you mastered lucid dreaming, so you have a lucid dream every night. You might want to use this phase to do creative work or problem solving. Would this have a negative influence on the ...
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2answers
535 views

Are motivation and efficiency inversely correlated?

Observation: Motivation and efficiency seem appear to me to be inversely correlated for most people. That is, I know some people who tend to get very excited about a goal and take large amounts of ...
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2answers
1k views

Does law of attraction have psychological basis? [closed]

A common claim in business and self-help seminars is that optimists are luckier. Is it true that optimism leads to greater success in life? If so, what part of the brain support this so called "...
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1answer
3k views

What are the cognitive effects of increasing testosterone levels in men?

I've recently became interested in the effects if testosterone on the cognitive function in men, but cannot find much hard scientific evidence on the subject. What are the cognitive effects of ...
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72 views

Writing system, its future and social importance [closed]

I work on a rather specific subject, namely developement and inventing of writing systems (simply - alphabets). For some years it was just a hobby and creative exercise, but with time this hobby ...
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225 views

What happens neurobiologically when people “think fast”? [closed]

This question is related to this one: How long can a person stay happy, excited and motivated about something new? I found a couple of references to research that links "thinking fast" to mood lift: ...