Review - positive correlation means that variables increase or decrease together in the same direction. A negative correlation means that as one variable increases the other decreases. Positive or negative does not mean good or bad. It means the direction of the relationship between variables. Also remember that correlations fall in the range of -1 to +1. The closer the number is to 1 in either direction - either positive or negative - the stronger the correlation. The closer the number is to 0 the weaker the correlation. Pick the best answer for questions #1 to 3. If a study shows a positive correlation between low to moderate amounts of caffeine and improved word list memorization, which of these is indicated? Persons who consume low to moderate levels of caffeine perform better with list memorization. Persons who consume low to moderate levels of caffeine perform worse with list memorization. Consuming low to moderate levels of caffeine causes improved list memorization. There is no relationship between caffeine consumption and list memorization