PSY 11 Lecture Notes - Lecture 8: Demand Characteristics, Diet Drink
Document Summary
Both variables are going in the same direction. As one this goes up, the other goes up. Or if one goes down, the other goes down. The less you study, the lower your grades. The longer your ring finger, the higher your grade in math. The longer your index finger, the higher your grades in vocabulary: negative correlation. As one variable goes up, the other one goes down. The more alcohol you drink, the lower your grade. The more diet soda you drink, the higher the risk of depression. The less hair a man has on his head, the more likely he is to have a heart attack. The more antidepressants a teen takes, the higher the risk of suicide. The more sun you get, the less depression you suffer. Strength of the correlation: correlation coefficient is a number, ranges from 0 to 1, ignore the positive and negative signs, sign tells you the direction.