1. Correlational Research Strategy

2. Recall 5 basic Research Strategies Experimental Nonexperimental Quasi-experimental Correlational Descriptive

3. Correlational Research Goal is to establish associations or relationships between variables No attempt at explaining relationship – No manipulation – Control – Interfering of variables Nature of research is measurement of two variables for each participant

4. Data for Correlational Study Scores from two variables, X and Y Graphed using a scatter plot Shows strength and type of correlation – Closer data points to forming a straight line stronger the relationship – Direction of line indicates type Negative  as one increases the other decreases Positive  as one increases the other increases

5. Measuring Relationships Direction – Positive and negative Form – Linear and curvelinear Consistency – +1.00-0—1.00 – Correlation coefficient

6. Application Prediction – Example SAT and future GPA college Regression Analysis – Using X scores (predictor variables) to predict Y scores (criterion variables) Coefficient of Deterimination – Proportion of variance accounted for