18. Dr. Barnes is an organizational psychologist who has just completed a profile of the employees of Alcan. He reports that there is a positive correlation (r = +0.60) between salary and job satisfaction while there is a negative correlation (r = -0.75) between number of hours worked in a week and job satisfaction. Comparing the correlation coefficients, we can conclude that A) high salaries cause greater job satisfaction than less work hours B) less work hours cause greater job satisfaction than high salaries C) there is a stronger association between salary and job satisfaction D) there is a stronger association between number of hours worked and job satisfaction E) no conclusions can be made