A categorical variable for which each value represents a discrete category is a _____ variable
a. qualitative
b. quantitative
c. continuous
d. class interval
a
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Dr. Wilson cannot remember the name of her advisor when she was in medical school 30 years ago. She "knows" that she knows his name, and makes a great effort, but just can't remember. Dr. Wilson is experiencing:
A. state-dependent learning B. the tip-of-the-tongue phenomenon C. repression D. proactive interference
Spatial summation refers to ____
a. multiple weak stimulations that occur in rapid succession b. a decrease in responsiveness after repeated stimulation c. multiple weak stimulations that occur at the same time d. an increase in the strength of action potentials after repeated stimulation
Sperm and ovum
a. are created through the process of meiosis. b. contain twice the number of chromosomes found in other body cells. c. each contain 23 pairs of chromosomes. d. contain genetically identical instructions for the coding of protein and enzyme sequences. e. form to produce 46 pairs of chromosomes.
During which stage of development do new neurons form connections with other neurons?
A. Neurogenesis B. Migration C. Synaptogenesis D. Differentiation