Which of the following is true about research design?
A) Research design should be the first consideration in a research project.
B) Research design should be selected after thoroughly considering the problem and
research objectives.
C) Research design decisions should be made after data analysis.
D) Research design should be selected during the initial meeting with a client.
E) Research designs should be made after data collection.
If we were to graph the relationship of sample size (x axis) to sample accuracy (y axis),
we would notice that:
A) there is a linear relationship between size and accuracy.
B) accuracy increases quickly, up to about sample size 500, and then accuracy levels off
with relatively small gains made even when sample size is increased to as much as
2,000.
C) accuracy increases quickly, up to about sample size 5,000, and then accuracy levels
off with relatively small gains made even when sample size is increased to as much as
200,000.
D) accuracy increases quickly, up to about sample size 50, and then accuracy levels off
with relatively small gains made even when sample size is increased to as much as 100.
E) We cannot graph sample size and accuracy because we must also include the level of
confidence and the variability within the sample data.