A population has sum of squared deviations, SS = 100 and variance, s2 = 4. How many scores are in the population?
A) ?25
B) ?26
C) ?200
D) ?400
A
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What is a critique of the place theory of sound perception??
a. ?Place theory does not account for sounds that are below 60 dB. b. ?Place theory only works well for sounds that are above 60 dB. c. ?Place theory does not account for frequencies below 8000 Hz. d. ?Place theory only works well for sounds above 4000 Hz.
There are many more neural connections in the brain than the number of neurons because ____
a. ?each neuron can synapse with many other neurons b. ?neural connections also occur between glia cells c. ?all that is needed for a neural connection is two different types of brain material d. ?any two neurons can communicate in both directions across the same synapse
At least 50% of adults aged 80 complete fluid and crystallized tests of intelligence and performance at rates similar to young people. This statement suggests _______
a. extensive variability within age groups b. that at least half of older adults have had increases in their IQ scores over time c. that at least half of younger adults have higher IQ scores than the older adults d. all of the above are suggested
According to the article Coming of Age about the timing of puberty and adolescent behavior, sexual maturation was measured by:
(a) a blood test (b) a self-rated comparison with drawings (c) parental surveys (d) a ratio of bone mass to muscle mass