All Questions
Tagged with statistics experimental-psychology
26
questions
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19
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3x2 Mixed ANOVA, but 3 DVs, one of which is a yes/no - what statistical test?
I have a research design where I have a 3x2 mixed ANOVA, focussing on attitudes towards a drug. The between participants part has 3 levels, with 2 different methods of communicating about risks of ...
- 1
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50
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What kind of statistical analysis is suitable for this simple but unresearched data?
The data is regarding the perceived roundedness of given word stimuli (n=36). Each participant (n=44) rates each stimuli on two scales, roundedness & familiarity (both from 1-7 not round (sharp)/...
- 101
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48
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Using multilevel modeling to assess gender differences in intervention effects of an RCT, and how to look at mechanisms of change
I'm looking for some help here - so I'm a grad student and stats newbie (but trying to move on from newbie status!) and attempting to figure out how to conduct the analyses I'm interested in but I'm ...
- 13
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32
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Can you prove a psychological theory on a one-person research design?
Famous psychologists have proven their theories on a few subjects (really small sample sizes, like n = 3). Yet, now, we are taught that to prove any psychological theory right, we need to gather data ...
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31
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What is the study design for 2 samples measured at different times that can be considered independent? [closed]
I am trying to figure out the name for a design study in the following scenario. Imagine a hospital where patients with a certain condition (say bacteria infection) are treated with a certain ...
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27
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How to build a personal behavioural chart? [closed]
The question is realistically in two parts:
how could a personal behavioural survey be constructed?
are there any existing personal behavioural survey tools available?
The behavioural survey may ...
- 111
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1
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1k
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How to run a multiple hierarchical regression with both categorical and scale predictors in SPSS?
I'm currently carrying out research for my masters dissertation and i've run into a critical issue while trying to analyse my data. I'm a psychology student looking into predictors of male rape myth ...
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2
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3
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142
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What statistical tests should be performed to test effect of trials on response times where each subject has different number of data points?
I am running a behavioral experiment where a number of subjects (=20 in my case) perform a simple cognitive task. The experiment consists of a fixed number of trials (say, 40 in my case). During each ...
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4
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1
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385
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Which experimental design is this? Factorial vs within groups
I have two independent variables (age and gender) and one dependent variable (the results of a questionnaire using a Likert scale).
I'm trying to see whether age and/or gender have an effect on the ...
- 43
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3
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381
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Should I look at the data of an experiment before the dataset is complete?
For a research internship I am running psychological experiments online. As it takes a while until the experiment is done (meaning that enough people participated, so that a sufficient sample size is ...
2
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1
answer
54
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What variables allow one to empirically and scientifically quantify trends for learning curves?
Specifically, I am trying to quantify trends in learning for certain mediums of audio-visual communication, and what I've gathered so far suggests that there are 4 distinguishable types, being linear, ...
- 123
3
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2
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77
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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 ...
- 919
2
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1
answer
2k
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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 ...
- 465
2
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2
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339
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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.
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- 919
1
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0
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99
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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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