Exam 8: Correlational Research and Resources

In a single prediction question Y=a + bX), Y represents an)

A study of the relationship between SES and high school completion rates indicated a correlation of r=.60. How much variance do these two variables share?

Given the graph below what is the most likely correlation between these variables?

Gretchen wanted to see if given a sample of teachers' that graduated from colleges and Universities, GPA in college was related to starting salary as a teacher. Which correlation coefficient should Gretchen calculate?

Jack administered an achievement test with an internal consistency reliability of .75. Given the measure, how should Jack interpret the correlation? The instrument indicates

The criterion variable in a prediction study is another name for the

The correlation that Raymond found in his study between child self-confidence and reported number of friends was r=.90.

The common variance shared by the predictor and criterion variables is referred to as the

The graph below most likely represents a correlation of

Maddie reported a significant correlation of r=.20 between years of teaching and salary satisfaction in her large survey study. How can Maddie's findings best be described?

Compared to causal-comparative studies, one advantage of correlational studies in schools is that they often

Duffy's research addresses the relationships among amount of practice time, race times, and motivation for running in high school athletes. He measures motivation for running by a Likert scale. -Given Duffy's research, which one of the following correlation coefficients should he use to analyze his data?

Of the following, which is most likely an example of a correlational study?

For each, consider the information the correlation provides. -Suzanne reported a correlation between reading ability and math grades of r= .90 in the first grade. This correlation indicates that in Suzanne's study

For each, consider the information the correlation provides. -Kenji reported a correlation of -.85 between hours spent in community service and adolescent drug use. This finding suggests that

Nena reported a large effect for genetics in her study of early onset dementia. Of the following, which represents the correlation that she found?

Cheryl used age, education, and income to predict scores on a life satisfaction survey. Her regression equation accounted for 58% of the variance in life satisfaction. She collects a new sample and applies her equation. -In Cheryl's second sample, the variance she accounts for will likely __________ due to __________.

When using correlational analysis with multiple predictors and multiple criterion variables the appropriate procedure is

Duffy's research addresses the relationships among amount of practice time, race times, and motivation for running in high school athletes. He measures motivation for running by a Likert scale. -Duffy's findings indicate a strong positive relationship between practice time and race times. Which of the following is a possible correlation in his research?

Milton reported in his study that as chocolate consumption increased, reported stress remained constant. Of the following, which is a correlation coefficient that would best support Milton's claim?