The structure that controls the size of the pupil is the

a. lens.
b. iris.
c. cornea.
d. vitreous humor.


B

Psychology

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The University of Michigan's "Monitoring the Future" research group has been surveying 6,000 different students a year for nearly 40 years. What type of research design is this?

a. An experiment b. A longitudinal study c. A cross-sectional study d. A case study

Psychology

In groupthink, the decision is ____ than ____.

A. less important; reaching agreement B. more important; having a spirited debate C. less important; having a spirited debate D. more important; reaching agreement

Psychology

These allow us to convert an entire distribution into z-scores without changing its shape.

What will be an ideal response?

Psychology

Trisomy-21 results in which condition?

a. cretinism b. Down syndrome c. Fragile-X syndrome d. phenylketonuria (PKU)

Psychology