Down syndrome has been linked to

a. a chemical imbalance.
b. a gene on the X chromosome.
c. possessing an extra X chromosome.
d. possessing an extra chromosome in chromosome 21.


d. possessing an extra chromosome in chromosome 21.

Psychology

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Subgoals serve a key role in which of the following?

A. Creative cognition B. Means-end analysis C. Functional fixedness D. Volitional daydreaming

Psychology

Which of the following are assumptions of the t test that must be met?

a. The data must be at least ordinal. b. The dependent variable must be normally distributed. c. Only two groups are compared. d. All of these are assumptions that must be met for the t test.

Psychology

Jail officers face unique challenges due to the transitory nature of the jail population.

Answer the following statement true (T) or false (F)

Psychology

About __________ babies born to mothers over 50 have __________

a) 1 out of 4; Tay-Sachs b) 1 out of 4; Down syndrome c) 1 out of 100; Tay-Sachs d) 1 out of 100; Down syndrome

Psychology