What are the two essential features of true experimental designs?
a. Dependent and attribute variables
b. Manipulation and random assignment
c. Blinding and counterbalancing
d. Theory and matching
e. Pretest and posttest
B
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Mrs. Blue wants an opening for her lesson that will motivate and focus her students. Which of the following strategies would be the most important to include?
a. Explain the objective and purpose of the lesson. b. Connect the lesson to other subject areas. c. Preview the sequence of activities in the lesson. d. Review earlier lessons.
Petit mal seizures
a. occur most frequently in children between the ages of 12 and 18. b. are very brief, usually lasting between 15 and 30 seconds. c. are clearly recognizable when they occur. d. are also called presence seizures.
Which of the following sampling strategies is a good choice if a researcher wants to be sure to describe the different perspectives about a central phenomenon?
a. Homogeneous sampling b. Random sampling c. Snowball sampling d. Maximal variation sampling
In adolescents, the developmental disjunction between strong emotions and the ________ may account for their increased risk taking.
A. cerebellum B. cerebrum C. thyroid gland D. prefrontal cortex