Briefly describe what Cohen (1990) meant by the two principles of "less is more" and "simple is better" as they pertain to the method used in a study

Based on the chart, what are the three most effective methods to protect against pregnancy?

Which field of study contributes ideas and concepts to biomechanics?

The effect of alcohol varies from one person to another, mostly because it depends on the blood alcohol concentration, or bac. what does blood alcohol concentration not depend on? a. amount of food in the stomach b. gender and size of the drinker c. rate of consumption d. time of drinking