An Educational Psychologist Wants to Predict How Well Students Will

question 54

Multiple Choice

An educational psychologist wants to predict how well students will do on a particular multiple-choice test based on a measure of their ability to follow instructions. Their actual scores are 3, 7, and 11, and their respective predicted scores are 5, 7, and 9.
-Advanced topic: What is the proportionate reduction in error?

• A)(32 - 8)/ 32 = 0.75
• B)(8 - 32)/ 8 = -3
• C)32 / (8 + 32)= 0.80
• D)(8 + 32)/ 8 = 5