Decision Tree in Statistical Analysis

A set of vocabulary flashcards covering key terms and concepts related to statistical analysis techniques discussed in the lecture.

Mann Whitney Test

A nonparametric test used to compare differences between two independent groups when the same subjects do not participate in both groups.

Wilcoxon Test

A nonparametric test used for comparing two paired samples to assess whether their population mean ranks differ.

U statistic

A statistic used in the Mann Whitney test that summarizes the ranks of observations from two different groups.

Chi-squared Test

A statistical test to determine if there is a significant association between categorical variables.

Friedman Test

A nonparametric test that detects differences in treatments across multiple test attempts.

Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution across multiple groups.

Page L Test

A nonparametric test used to determine the direction of differences between conditions in within-subject designs with more than two conditions.

Ranks

The positional arrangement of data points in order from lowest to highest, often used in nonparametric tests.

Statistical Significance

A determination that results are unlikely to have occurred by chance, typically assessed at a threshold level such as p < 0.05.

Between Subjects

A research design where different subjects are assigned to different conditions or groups.

Within Subjects

A research design where the same subjects are used in all conditions or groups.