You have developed a paper-pencil survey that you claim measures “love of pets.” To establish its validity, you do the following: correlate scores on it with the number of pets a person has; correlate scores on it with how much money the owner spends on his/her pet; and you give it to a group of people who own pets and a group who do not, and compare their average scores on the survey. What type of validity are you trying to establish?

(a) content, (b) predictive- criterion -related, (c) concurrent – criterion-related, (d) construct validity