Ms. Johnson announces to the class that 40% of the students will receive a "C" in the class and that the top 10% of the students will receive "A's", the next 20% of the students will receive "B's", the bottom 10% of the class will receive "F's" with the final 20% of the class receiving "D's." How can this be?
a. Ms. Johnson uses norm-referenced grading.
b. Ms. Johnson is a psychic.
c. Ms
Johnson has been teaching so long, she knows this is how grades always turn out.
d. Ms. Johnson uses criterion-referenced grading.
A
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Overdispersion:
A. All of these are correct. B. Tends to limit standard errors. C. Doesn’t affect the model parameters (b-values). D. Biases our conclusions about the significance and population value of the model parameters.
Refer to Exhibit 12-5. The researcher uses only those students with IQs of 100-105
a. match b. use analysis of covariance c. use a homogeneous group d. add intelligence as an additional independent variable
What biological factor contributes to a mother's responsiveness and instant feelings of attachment to her newborn?
a. Natural feelings cultivated through cultural expectations over millennia. b. Production of the hormone oxytocin. c. Increase in the number of synapses in the brain's frontal lobe. d. Decrease in activity in the corpus callosum of the brain.
Rori is observing elite marching bands as part of her dissertation study. She is particularly interested in drum major leadership styles and behavior. She has found that the drum major at her current research site is very interested in showing off for her. This is an example of
a. response bias. b. researcher bias. c. sampling bias. d. instrumentation bias.