Exam 13: Describing Relationships with Correlation Coefficients

You read in a professional magazine that, in one research study, researchers obtained a correlation of -.50 between the amounts of time that college students study and the course grades that they earn.You should conclude that:

When analyzing the data she has collected for a research project, a researcher computes a correlation coefficient of +32.9 between self-esteem and classroom performance.The researcher should definitely conclude that:

You read in a professional magazine that the correlation between test anxiety and classroom test performance is -.30.You should conclude that:

According to the research, the relationship between academic achievement and self-determination (i.e., the amount choice and personal control over one's environment) is both positive and strong.However, researchers doing work in your classroom found a correlation of -.15 between the number of student choices and grades.You should conclude that: