________ means that two or more variables are present together.
a. Control group
b. An unobtrusive measure
c. Correlation
d. Secondary analysis
Question 2
According to the principle of diffusion of responsibility, the _____ bystanders to an incident that there are, the _____ likely people are to help.
a. fewer; less
b. fewer; more
c. more; more
d. better armed; more
