Personal identity is based on our unique characteristics, such as our interests, abilities, and traits.

Simply put, the difference between people in the experimental group and those in the control group is whether they

a. are participating in the research. b. receive the study treatment. c. are measured by the researcher(s). d. receive the dependent variable. e. are in a double-blind study.

According to John Holland's personality type theory, people who are down to earth, practical problem solvers, and physically strong, but who have mediocre social skills, are best described as __________

a) conventional b) enterprising c) realistic d) intellectual