An education specialist is interested in how the number of words learned within the first two years
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An education specialist is interested in how the number of words learned within the first two years of a child’s life affects the trajectory of academic performance later in high school. To test his idea, calculate Pearson’s correlation coefficient for the relationship between “words known at age 2” and “high school grade point average (GPA)” for a sample of six teenagers. What is the strength and direction of this relationship?
Transcribed Image Text:
Words Known at Age 2 High School GPA 3.52 3.14 3.96 2.82 2.34 3.67 20 14 18 8 7 17
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Solution The strength is called Pearsons coefficient 076 The direction i...View the full answer
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Related Book For
Elementary Statistics In Social Research
ISBN: 9780205845484
12th Edition
Authors: Jack A. Levin, James Alan Fox, David R. Forde
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