Questions tagged [experimental-psychology]

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

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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 ...
4
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2answers
146 views

Introduction or Tutorial on Continuous EEG Collection Procedures and Initial Processing?

Are there any tutorials or introductions (specifically not slides from talks) on the very basic details of EEG data collection and processing? Things like: Discussions of reference systems (montages) ...
3
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1answer
46 views

How to record mouse-pointer fixations? [closed]

I'm planning an experiment in which participants will respond to a stimulus by using a mouse to click somewhere on a computer screen. I'm interested in analyzing the strategies participants use to ...
4
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2answers
1k views

How do you call a study in which subjects were deceived about the real purpose?

Is there any “official” term to describe a study in which subjects were deceived about the real purpose of the research? I am talking about studies that purposefully hide the real research questions ...
0
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1answer
2k views

How do you decide how many trials to have in an experiment? [duplicate]

I'm currently designing an experiment with several conditions - how do I decide how many repetitions / stimuli within each condition? I know that I can justify sample size with an a priori power ...
2
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1answer
58 views

Why are the ERP amplitudes recorded and analyzed from different software so different in voltage?

Here are the two ERPs from the same study design, though different subjects. The largest amplitude in the 1st one goes up to 25 uv, while only goes up to 6 in the 2nd figure. Differences: The 1st ...
4
votes
1answer
968 views

What are the advantages of 2AFC in a psychophysical discrimination task?

As far as I understand. In the task of Two alternative forced choice (2AFC), given two possible stimuli, $S1$ or $S2$, the subject has to decide weather he\she (it) saw the sequence $(S1,S2)$ or the ...
1
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1answer
85 views

Is there a central collection of information about the often called right brain phenomena? [closed]

There are mental states that some have termed right brain e.g. "Drawing on the right side of the brain" but which may be incorrectly described. Is there a site that specializes in information on ...
1
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0answers
93 views

Is there a script to measure face width to height ratio? [closed]

I´d be interested whether you know a script or anything automated to measure the face width to height ratio of a set of pictures depicting faces. Otherwise, your experience how to do that ...
0
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1answer
78 views

How does timing of pleasure / dopamine / reward influence the formation of positive association? [closed]

Suppose the following idealized experiment: Setup: A pill/medication which simply induces pleasure. Perhaps something like a perfect dopamine antagonist with no side-effects. Call it P A task which ...
4
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1answer
563 views

Where to find a study on women and selfies?

I have recently read the following Yahoo article: Guys, this is why you should never post too many selfies on social media. This article describes a study that correlates selfies taken by men and ...
0
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1answer
158 views

Measuring emotion [closed]

I'm doing a quasi-experiment for an assignment, and the dependent variable is emotional response. FMRI is not a feasible option, so is there another good and reliable way to measure emotion without ...
3
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2answers
21k 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 ...
3
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0answers
207 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
85 views

Can the knowledge and the tools we acquire in conscious brain become tools for the unconscious brain? [closed]

I am reading this intriguing book titled Consciousness and the Brain: Deciphering How the Brain Codes Our Thoughts (2014) by Stanislas Dehaene. In one of the chapters he talks about how the brain has ...
7
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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. ...
1
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0answers
718 views

How to determine percentile rankings for responses to for Big5 Mini-Markers test?

I'm writing a big 5 personality test using Big 5 Mini Markers by Saucier, as described here: http://pages.uoregon.edu/prsnlty/SAUCIER/Saucier.Minimarkers.Full.pdf Given that most markers have about 0....
4
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1answer
59 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 ...
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 ...
4
votes
1answer
514 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 ...
7
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2answers
866 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 ...
1
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1answer
32 views

How to convince subjects that the computer is playing fairly

We are planning an experiment using the odds-and-evens game. The rules of the game are simple: player A selects either "1" or "2"; player B selects simultaneously either "1" or "2"; if both select the ...
1
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0answers
47 views

When many laws are too many laws? [closed]

Let's consider an experiment: Take a baby and have it raise in a very law-strict environment (his parents are very strict and follow any rules, be it legal, be it religious, be it moral) but ...
4
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2answers
68 views

How can the effects of pain on cognitive functions be tested in an ethically accepted way?

I have devised a study that may provide an ethical way to invoke similar behaviours in participants, as those demonstrated by individuals in pain. Obviously it is extremely hard to correctly test ...
4
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1answer
298 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-...
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 ...
3
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0answers
48 views

Is there any study about the impact on the continuous use of predictive keyboard by neurologically and psychologically health individuals?

As there is evidence of massive-scale emotional contagion through social networks, I'd like to know if any study has been made regarding predictive keyboards. Given the popularity of predictive ...
2
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3answers
171 views

Categorization studies with a procedure similar to Shepard et al (1961) and Medin & Schaffer (1978)

I am looking for performance results from categorization studies with discrete stimulus features and reinforcement feedback. I need something like this: ...
2
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1answer
4k views

Social loafing vs. Free riding

In different papers I see these terms with very close definitions. Are they different things? If yes, how one can differentiate them?
3
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2answers
64 views

Group differences reflecting different use of a rating scale vs actual difference in perception

I was reading a paper that reports average ratings of chords by two different groups of subjects (trained musicians, and non-musicians). The paper makes the argument that "These group differences ...
3
votes
2answers
546 views

Can I use other softwares than Linger to run a self-paced reading task

I want to run an SPR experiment where participants will read sentences at their own pace. My problem lies in the fact of using 2 different languages English and Arabic at the same time. I tried it ...
1
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1answer
61 views

What's this cognitive bias that relates to misremembering exact stimuli?

Say a participant is shown a reference stimulus of white colour. Afterwards, they are shown a number of test stimuli that range from yellow to blue like this (yellow -> less_yellow -> whitish -> white ...
6
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0answers
1k views

Does testosterone level cause more sexual dream content?

I have long been interested in dreaming, including how dream content can shed some light on brain chemistry. I did a search on the subject of testosterone levels altering dream content and see some ...
3
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1answer
65 views

Ground a student survey in academic literature

I'm planning to do a survey with students (age around 16) with questions/answer-possibilities that have been 'proven' to be significant indicators of student success/good grades. So, I'm not really ...
6
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1answer
92 views

Valence conveyed in simple geometric shapes

I've seen neuroscience and facial recognition studies that give evidence for this idea of simple geometric shapes causing emotional responses or quicker recognition of negative affect. Are there ...
4
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3answers
1k views

Split Brain Experiments on Animals

I was wondering what would happen if you took a split brain person and stimulated the pleasure center of one hemisphere and the pain center of the other hemisphere in conjunction with an external ...
5
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3answers
365 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 ...
2
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1answer
1k views

Bootstrapping in Psychology

I am interested in bootstrap, especially how it's entering the psychologist's world. Boostrapping is used to 'omit' classical assumptions to get statistics. Bootstrapping starts with creating new ...
1
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0answers
57 views

What is definition of “excessive correlation” is Michael Persinger using?

I'm trying to parse the significance of Michael Persinger's work. From what I can understand, he uses toroids to create magnetic fields which can change the PH of spring water and change photon ...
6
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2answers
770 views

Is it possible to run Psychtoolbox or PsychoPy on Raspberry Pi 2 for simple perceptual experiments?

We are considering setting up a few testing computers using Raspberry Pi 2. There was an interest in this a few years ago, but due to limitations of OpenGL in Raspberry Pi it did not go far. I was ...
1
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0answers
33 views

Quest procedure convergence after random answers

I use Quest procedure to find threshold for stereo disparity changes of a stimuli. I use a C++ implementation derived from the one in Psychotoolbox and I wonder whether the behaviour I observe is ...
2
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0answers
55 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 ...
1
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0answers
16 views

Best ways to remember dreams [duplicate]

What are the best techniques to recall dreams? I am especially interested in scientific research that would prove their effectiveness
2
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3answers
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 ...
1
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0answers
30 views

How do I convert RGB indexes under luminance condition L (from photometry) to a perceptually scaled equivalent (e.g. CIECAM02)? [closed]

I would like to determine the similarity of a set of RGB colors that are displayed on a monitor using CIECAM02 (or CIEDE2000). I have access to a photometer. How do I go about this? The goal is ...
2
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2answers
318 views

Attributing change in DV to IV manipulation: between-groups (control group) vs mixed-model (pre&post measure)

One often sees researchers attributing a change in the dependent variable to their experimental manipulation, semingly without considering whether this change in DV occurs between or within groups. ...
2
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0answers
95 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 ...
1
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0answers
118 views

Where can I find Gaming Experience Questionnaire (GEQ) ? [closed]

I am currently doing a research about computer games and in my experiment set up I need to asses each players gaming experience via Gaming Experience Questionnaire (GEQ). Is there any place I can ...
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 ...
-1
votes
1answer
122 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 ...