SOC SCI 10C Chapter Notes - Chapter 18: Level Of Measurement, Negative Relationship, Dependent And Independent Variables
Document Summary
A relationship exists between the variables x and y if knowing a case"s score on x will allow you to better predict the case"s score on. Y: correlation- a relationship that exists between two numerical variables, correlation coef cient- a statistic which measures the strength of a relationship between two variables. Positive relationship- one in which high scored on x are associated with high scores on y, and low scores on x are associated with low scores on y. Negative relationship- one in which cases that score high on x tend to score low on y and vice versa. Scattergram- pictorial representation of the relationship between the independent variable x and the dependent variable y: regression line- the line which best characterizes the linear relationship between x and y. 18. 3 computing pearson"s r: covariation- sum of the products of each case"s deviation on x multiplied by its deviation on y.
