Jamie and Lynn were sure that they had answered most of the multiple-choice questions correctly because "the questions required only common sense." However, they each scored less than 60% on the exam. This best illustrates what trait?
Which research method runs the greatest risk of collecting evidence that may be unrepresentative of what is generally true?
Every twenty-fifth person who subscribed to a weekly news magazine was contacted by market researchers to complete a survey of opinions regarding the magazine's contents. The researchers were applying the technique known as?
A correlation of +0.70 between children's physical height and their popularity among their peers indicates that?