Examlex
Brain chemical associated with mood disorders
Research Hypothesis
Statement regarding an expected or predicted relationship between variables.
Ordinal Variables
Variables that represent categories with a natural order or ranking, but where the distances between categories are not necessarily equal.
Spearman Rank-Order
A nonparametric measure of rank correlation that assesses how well the relationship between two variables can be described using a monotonic function.
Pearson Correlation
A measure of the linear correlation between two variables X and Y, giving a value between -1 and 1 which indicates the extent of their linear relationship.
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