Questions tagged [experimental-psychology]

For questions about the application of specific experimental methods to study psychology.

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25
votes
11answers
5k views

How can I create computer based psychology experiments using OS X?

I've used E-prime to create computer based psychology experiments (you know, the kind where you for example show a number of pictures to the participant and record their responses to them, for example ...
23
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4answers
4k views

How long does it take to read a sentence with X number of characters?

How does the time needed to read a sentence scale with the number of characters? Or does this time scaling depend on something more than just character count? For example, let $X$ be the number of ...
22
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5answers
1k views

Can response time be incorporated into signal detection theory?

In signal detection theory, one typically uses "signal" and "no signal" responses to analyze the data (that is, the analysis is based on a discrete choice for each trial, generating the four possible ...
22
votes
1answer
828 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 ...
21
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2answers
2k views

What tasks does Bayesian decision-making model poorly?

Bayesianism has been a relatively successful paradigm for modeling decision-making. However, not every psychologist is a bayesian, and there are tasks such as the Tversky & Shafir (1992) ...
19
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5answers
3k views

Is there an R implementation of the linear ballistic accumulator model or Ratcliff's diffusion model for measuring response time and accuracy?

I am looking for an implementation of the linear ballistic accumulator model or Ratcliff's diffusion model (e.g. in R, MATLAB, or Python).
18
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2answers
38k views

What was the experiment where you pour liquid from a tall container to a short one and ask a child which has more?

From Developmental psychology 101 I remember an experiment where the person conducting the experiment would pour liquid from a tall, narrow container into a short, narrow container and ask a child if ...
18
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1answer
435 views

Human behaviour in one-shot perfect information games

Background A one-shot game is one where two participants have some set of actions $\{1, ... , n\}$, they make their decision on which option to take (without knowing the decision of their partner, or ...
16
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6answers
11k views

How to analyze reaction times and accuracy together?

Is there a good way to analyze reaction times and accuracy together, other than MANOVA? I have data from an experiment in which participants had to respond to stimuli in two different conditions in a ...
16
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8answers
1k views

Software for online psychological experiments that don't require users to download anything

We are currently using Inquisit to conduct Internet experiments. Ideally, we would like to implement something that is strictly browser-based, without any extra plug-ins or downloads. We also ...
16
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3answers
1k views

Longitudinal mobile mood tracking app with random reminders

The goal is to take simple measurements of mood using Likert scale over an extended period of time (e.g. two months). I know there is a large number of mobile apps for tracking mood on every ...
14
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5answers
3k views

Is psychology a science?

I've read some books from behavioral economy to emotional intelligence, and it kind of makes sense, but when it comes to psychology it feels to me a bit like astrology, where there are some things ...
13
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4answers
4k 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 ...
12
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2answers
8k views

Do people (under)value free stuff?

I recently saw this Ted talk by Esther Duflo, and in it Duflo tells of how she tackled the question in the title head on, in the context of health and disease prevention. I would like to know what ...
11
votes
2answers
5k views

What is the standard way to analyze EEG data in a mismatch negativity paradigm?

I'm running an EEG experiment using a modified auditory mismatch negativity (MMN) design, and I'm wondering if anyone can tell me the best method for data analysis (and recommend any stats programs/...
11
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1answer
2k views

How to measure group differences incorporating reaction time / accuracy trade-off?

In a psychological experiment I am measuring subjects' reaction time as well as their error rate. Now I would like to compare two groups (males & females). There might be a bias in the sense that ...
11
votes
1answer
6k views

What does “veridicality” mean in terms of psychology?

I'm reading the paper "Visual Space Perception and Visually Directed Action" by Loomis, Da Silva, Fujita and Fukusima (1992; pdf). In this paper, the word 'veridicality' is used in several sentences. ...
11
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1answer
206 views

Problems with using personal feedback to motivate participation in an online psychological experiment?

I am planning on running an online psychological experiment where participants must learn about various simulated environments and then make inferences about them. Because completing the experiment ...
11
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1answer
2k views

Do people “subvocalize” during thinking or “internal monologue”?

I've recently became aware of the concept of subvocalization, where people make tiny motions with their vocal cords when reading. I'm looking for a clarification on the subject: Does subvocalization ...
10
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2answers
1k views

How can experimental compliance (willingness of participants to participate) be measured?

I would like to have a measure for how willing and eager participants were during an experiment. I have the intuition that their eagerness to comply will profoundly alter results of psychological and ...
9
votes
2answers
197 views

How do humans optimize noisy multi-variable functions in experimental settings?

Imagine an experiment like this: A participant is asked to optimize an unknown function (let's say minimize) . On each trial the participant provides several input values, and receives an output ...
9
votes
1answer
1k views

Is there a database of emotional stimuli available?

For my research I need to use emotional stimuli to use for habituation to certain emotion. Are there any databases available (preferably free or not expensive) of non-linguistic stimuli I could use? (...
9
votes
2answers
404 views

Is there a circadian component to mood variations in humans?

I'm looking at this question about an Experience Sampling Method (ESM) app: Longitudinal mobile mood tracking app with random reminders The studies linked in the question deal with sampling of user ...
8
votes
2answers
149 views

What is the name of a test presenting words in different colors?

What's the name of this psychological test where you. Read and pronounce words in three colors (red, blue, green). - Words and colors match. - Say word and color (which are the same). As above - ...
8
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2answers
2k views

How to assess participant awareness of experimental deception without inducing awareness?

I am designing a memory experiment with a deceptive critical trial, wherein an item is swapped without the participant's knowledge. What is the best way to determine if the participant has noticed ...
8
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1answer
201 views

Picture of eye promotes good behaviour

I remember a study about how a picture of an eye made people more well behaved. The experiment was in an unsupervised coffee room where there was a box where participants were expected to deposit ...
8
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3answers
187 views

Is there a research on correlation between honesty and success?

Did anyone do a research on corelation between honesty and success, establishing individual's honesty through a provocative experiment and comparing it with his/her salary amount, satisfaction of ...
8
votes
1answer
504 views

Are there any rules about masking?

I am currently programming an experiment where participants have to do a divided visual field task. In a paper about the correct methodology about these tasks, it is said that you should use a ...
8
votes
1answer
574 views

What is the test-retest improvement in Block Design test?

Background: My lab is conducting a research on perceptual training. We train participants on different tasks, and assess them pre- and post- training on a large battery of tests. Obviously, people ...
8
votes
1answer
3k views

Quantifying the Dunning-Kruger Effect

The Dunning-Kruger effect states that people unexperienced in a certain field or subject generally perceive themselves as having greater aptitude than in reality they do. Dunning and Kruger were able ...
8
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2answers
819 views

How does this experiment prove a causal relation between coherence and good feelings?

I'm reading Thinking, Fast and Slow by Daniel Kahneman and I came across the following text: The Remote Association Test has more to tell us about the link between cognitive ease and positive effect. ...
8
votes
1answer
207 views

Are there any open task sets available to assess workload using secondary task measures?

Performance on secondary tasks next to a primary task is sometimes used to assess mental workload (Ogden, Levine and Eisner, 1979). For example, the Stroop test as a secondary task has been evaluated ...
8
votes
1answer
171 views

Advantage of active learning on classification tasks

I am looking for a specific type of experimental test of active learning. Given some artificial or natural learning task that consists of classifying inputs $x$ from a large input space $X$. There is ...
8
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0answers
256 views

Does Golden Hammer really exist?

Note: I am not talking about Law of the instrument. I am referring to the following (anti-)pattern of behavior: A person very competent in one area (say, Philosophy) peremptorily expressing his ...
8
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1answer
5k views

Why do people love nature?

I wonder why we feel happy and comfortable when seeing the view of trees, green plants and flowers. Why do we admire sea, waves, fishes inside pure water and sun set? why do we love seeing the view of ...
7
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3answers
321 views

Why did Richard Feynman appear to recommend replication before manipulation when conducting lab experiments?

In Richard Feynman's classic Cargo Cult Science speech. He talks about a type of scientific error made, where a person takes a previous experimental result for granted when designing an experiment. ...
7
votes
1answer
522 views

In the digit span test, why do some strategies work and others don't?

I got a free copy of PEBL, psych experiment software, which includes a couple of standard working memory tests. When I perform the digit span working memory test, I can repeat the numbers as they ...
7
votes
3answers
557 views

Which is the shortest duration for a pitch difference in audio signals to be perceived by the human auditory system?

If I have two short audio signals, for example pure tone C4 and C#4, so half-tone difference, how short can they be that the human can hear the difference in pitch? Was there any blind-experiment/...
7
votes
1answer
175 views

Why do we use 3 channel R,G,B to represent color?

I read that there're some more colors which cannot be represented by R,G,B. What is the experiment that lead people to use 3 variables R,G,B? Can that experiment be replicated in other modals, such ...
7
votes
2answers
307 views

Where are scientific references for the claims made in “Thinking Fast and Slow”

I am currently reading fast and slow and the author mentions the results of a lot of studies. However, these are not directly cited, although some can possibly be googled with the information given. ...
7
votes
2answers
868 views

Do children inherit intelligence from their mothers and not their fathers?

This article, http://www.independent.co.uk/news/science/children-intelligence-iq-mother-inherit-inheritance-genetics-genes-a7345596.html?cmpid=facebook-post, suggests that children inherit ...
7
votes
1answer
741 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 ...
7
votes
2answers
104 views

Differences in willingness to correct errors made between human and computer interactions

I have a design where I present participants with a series of decisions, and then ask them about some of these decisions later. Similar work has found that even when the particular decision was made ...
7
votes
1answer
158 views

What is the state of the art in computerised coding of Thematic Apperception Tests (TATs)?

Thematic Apperception Tests (TATs) involve showing test takers pictures and getting them to write stories based on the pictures. Coding such stories for themes and traits can be complex, time-...
7
votes
1answer
90 views

Accuracy of social judgements of observers watching business meetings

I'm very interested in how people size one another up in social situations and in particular what we key in on when we are making these judgements. Let's make an imaginary experiment. I make ...
7
votes
1answer
66 views

Effectiveness of implicit measures of deception (e.g., sweating, eye focus, EEG) when filling out online questionnaire

I'm working in my master thesis on a method of detecting user deception or lying when answering online questionnaires using his implicit feedback like sweating, eye focus, EEG etc. I would like if ...
7
votes
1answer
69 views

Is it possible to imitate two way communication between a brain and a limb?

Human muscles are controlled by action potentials that travel along the nerves. Below is an image of a train of action potentials that are decoded by the brain into a sensation or interpreted by a ...
7
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0answers
1k views

Have there been any recent replications of the Hofling hospital experiment?

In the original Hofling hospital experiment (1966): A person would telephone a nurse, saying that he was a doctor and giving a fictitious name, asking the nurse to administer 20 mg of a ...
7
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0answers
284 views

Difference between Logan's Instance theory and Exemplar-Based Random Walk (EBRW) theory

I'm trying to find a clear explanation of the difference between Logan's instance theory (Logan, 2002) and the Exemplar-Based Random Walk theory (Nosofsky & Palmari, 1997). Am I mistaken that they ...
7
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0answers
566 views

Has there been a neuroscientific explanation of the color phi phenomenon?

The color phi phenomenon is a perceptual illusion in the visual domain which was demonstrated in an experiment by Kolers and von Grunau (1976). The experiment is as follows. A sequence of coloured (...

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