A stratified random sample is conducted to ensure that
a. each subject in the population has an equal chance of being selected
b. each sub-population is adequately represented in the study
c. choosing a subject will increase the probability of similar subjects being chosen
d. the research hypothesis being tested will be confirmed.
B
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List the steps that are common to all research studies regardless of methodology
What will be an ideal response?
Three of the characteristics listed below are frequently found in computer-based instruction. Which characteristic are we least likely to see in CBI?
A) Questions that ask students to recall what they already know about a topic B) Strategies for catching and keeping students' attention C) Opportunities for group discussion of the material D) Drill-and-practice exercises that promote automaticity
Having students look up words in a dictionary to determine their meanings can be helpful at times, but in other cases would be viewed as a weak form of instruction. Teachers should judiciously use the dictionary as a part of a meaning vocabulary instructional program
Indicate whether the statement is true or false
All of the following strategies can be used to minimize participant reactivity EXCEPT ______.
A. a statement of confidentiality or anonymity in an informed consent B. the use of deception that is ethical C. minimize demand characteristics D. maximize demand characteristics