Suppose the researcher also expected a relationship between the IQ scores of fathers and their sons. Use the following IQ scores to test this theory. Family Father Son 120 121 110 105 120 125 92 87 85 92 72 90 107 110 115 122 155 133 90 123 What is Pearson correlation coefficient (r) for the data above? A .788 B .892 C .714 D 1.0
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Suppose the researcher also expected a relationship between the IQ scores of fathers and their sons. Use the following IQ scores to test this theory.
| Family | Father | Son |
| 120 | 121 | |
| 110 | 105 | |
| 120 | 125 | |
| 92 | 87 | |
| 85 | 92 | |
| 72 | 90 | |
| 107 | 110 | |
| 115 | 122 | |
| 155 | 133 | |
| 90 | 123 |
What is Pearson
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