The chi-square test can run into trouble if
a. the observations are not independent.
b. the expected frequencies are too low.
c. the total number of subjects is very small.
d. all of the above
D
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American psychiatrist Thomas Szasz has taken the somewhat radical position that
a. even people who commit serious crimes should not be imprisoned if they are suffering from a mental disorder. b. that everyone who commits a crime is mentally ill to some degree. c. even people who are seriously mentally ill should still be held responsible for their behavior. d. that all criminals should be allowed access to psychiatric treatment.
The most recent research investigating the brain's plasticity suggests that
a. the plasticity of the brain is unlimited; it is our ability to measure it that is limited. b. the brain's plasticity and flexibility increases with age. c. the neural wiring of the brain is flexible and constantly evolving. d. after infancy, new neurons only form in the left hemisphere of the brain.
If a two-factor study has 2 levels of factor A and 3 levels of factor B, then dfbetween treatments = 5
Indicate whether the statement is true or false
In the middle ear, the purpose of three tiny bones known as the ossicles is to ____.
a. buffer sound waves before entering the inner ear b. decode the frequency and amplitude of sounds waves c. transfer sound energy to the fluid of the inner ear d. directly stimulate the auditory nerve