1. Access the ch17 data file, which contains information on a nonrandom sample (n 64) of...

1. Access the ch17 data file, which contains information on a nonrandom sample (n ¼ 64) of eighthgrade students from a rural school district in the Midwest. The data include science test scores from state and district assessments, as well as two selfreport measures: science self-efficacy and classroom support in science.