Melvin and Leigh are interviewing students at their campus to determine if the students agree or disagree with a proposed policy change. Melvin believes the proposed policy change is a good idea, but Leigh believes the change will be bad for students. Nearly all the students who Melvin interviewed supported the policy change, but nearly all the students who Leigh interviewed disapproved of the
change. The differences in the results illustrate the potential impact of
a. the placebo effect.
b. double-blind research studies.
c. confounded dependent variables.
d. experimenter bias.
D
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Students in an introductory art class are classified as art majors and non-art majors. What scale of measurement is being used to classify the students?
a. Nominal c. Interval b. Ordinal d. Ratio
Samantha is about to hand Megan a notebook that contains her biological psychology notes. Which of the following correctly describes how Megan's muscles will react to the heavy notebook?
a. The weight of the notebook will cause Megan's arm muscles to contract. This information will be sensed by mechanoreceptors around her joints and sent to her spinal cord via Ib fibers. The Ib fibers will excite gamma motor neurons, which will cause her arm to contract further to adjust to the heavier weight of the book. b. The weight of the notebook will cause Megan's arm muscles to stretch. This information will be sensed by her spindles, and sent to her spinal cord by gamma motor neurons. The gamma motor neurons will inhibit the alpha motor neurons, causing her arm muscles to relax enough that she won't drop the book. c. The weight of the notebook will cause Megan's arm muscles to contract. This information will be sensed by her Golgi tendon organs, and sent to her spinal cord by Ib sensory fibers. The Ib sensory fibers will excite alpha motor neurons that will cause her arm muscles to stretch enough that she won't drop the book. d. The weight of the notebook will cause Megan's arm muscles to stretch. This information will be sensed by her spindles, and sent to her spinal cord by Ia sensory fibers. The Ia sensory fibers will excite alpha motor neurons that will cause her arm muscles to contract enough that she won't drop the book.
When used by a person with a life-threatening illness, denial can mean
a. I am not ill b. I am ill, but it is not serious c. I am seriously ill, but not dying d. I am dying, but death will not come for a long time e. all of these
Language evolved as a function of ______.
A. electrical activity B. natural selection C. brain activation D. expression