Different types of associationes Flashcards
Lurking variable: / extrenious variable :
common response: shark and ice cream - we know that both are influenced by a third variable.
Confounding variable : you know that the outcome is not only due to your independent variable.
What different developmental designs exist ?
cross sectional :different groups get measured with the same test and you compare the results to each other.
Longitude design : you conduct research based on the development of the subject . You observe the subject over a certain time span .
What kind of non experimental designs exist?
Correlational design : you analyse the correlation of two variables , predicting - Regression
Descriptive design: you just describe what you see sum up the data and make conclusion of it . For example : Consumer happiness.
What’s called the golden role of research?
- correlation doesn’t equal causation!
What makes a causation a real causation?
- strong correlation
- consistent
- long lasting
- no effect of a confounding variable / lurking variable
What are demand characteristics?
- demand characteristics are the ones that demand something of the subject .
How should I behave?
Should I please the experimenter?
Acting like an antagonist in the experiment .
A solution for demand characteristics ?
- double blinded study
- deception - telling the participants something else will be tested than the thing that is actually tested.
Whats the Simpsons paradox?
- a paradox that occurs when you analyse the data of a contingency table
- if you get a different outcome when you analyse the data of the rows compared to the columns we talk of a contingency table
- you have to look at the overall conclusion- the total percentage to figure out , whether the
causal and correlational relationship
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between-subjects design within-subjects design
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error variance
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randomized two-group design vs randomized multi group design
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parametric design nonparametric design
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matched-groups design vs matched-pairs design
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counterbalancing
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