Examlex
Wundt and his students found that it took a subject about one-tenth of a second longer to respond to a stimulus when concentrating attention on the expected stimulus,as opposed to when concentrating on the required response.To what process did they attribute the extra time?
Degrees of Freedom
The number of values in the final calculation of a statistic that are free to vary.
Qualitative Variables
Variables that express qualitative attributes and differentiate by category, not in numerical terms.
Chi-Square Test
A nonparametric test used to determine if there is a significant association between two categorical variables.
Sampling Distribution
The probability distribution of a given random-sample-based statistic if you repeatedly sample from the same population.
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