Dynamic perimetry is used to
a. test visual acuity.
b. map the sensitive and blind areas in the visual field after accidents or surgery.
c. measure the degree to which an individual is aware of a visual stimulus.
d. test for perception of movement.
Question 2
A researcher introduces a new mathematics program in one school district and uses a neighboring district as a no-treatment control group. Before the program begins, the students in both districts are given a standardized mathematics test. After the program is in place for six months, the students are tested again and the researcher compares the before and after scores for the two groups. This research study is classified as ____.
a. correlational
b. experimental
c. quasi-experimental
d. nonexperimental
