Explore BrainMass
Share

Random sampling vs oversampling: pros and cons

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Random sampling is the best technique in order to control for participant variables impacting research. Some have suggested over-sampling in case some participants were not cooperative.

Need some pros and cons of "Oversampling" to expand on my assignment. Any ideas or thoughts would be welcome.

© BrainMass Inc. brainmass.com October 25, 2018, 8:46 am ad1c9bdddf
https://brainmass.com/statistics/random-sampling-vs-oversampling-pros-and-cons-551916

Solution Preview

Oversampling is usually to balance out the sample to have enough of members of the various subgroups of interest. Random sampling will result in a similar proportion to the population but may not have enough from small subgroups to run ANOVA or other tests and distinguish between small sample groups (not enough statistical power). That is, a random sample does not ensure that all groups will have a minimum size (count in the sample), which is needed to reduce the margin of error for that subgroup. By selecting more from small subgroups, you ensure that you have a minimum subgroup size to run needed tests and can correct for imbalances in the sample.

CONS

Typically, the motivation is not to correct for ...

Solution Summary

Your discussion is 449 words and a reference and gives two pros and two cons with examples.

$2.19
See Also This Related BrainMass Solution

Analyze the use of the Sekaran diagram on the research process

See attached case file.

The assignments on research you have completed so far have taken you through a step-by-step process on how to develop and design formal research. In this capstone assignment, you will use all the knowledge and skills you have developed over the past weeks and apply it to a published research as part of a group activity.

This assignment consists of a fully APA Style 6th edition formatted paper in which the group analyzes a recently published business research study (a group choice) selected from the academic literature. The group analysis should be framed against each and every one of the steps presented in the Sekaran & Bougie (2010) research process and founded on the skills developed in previous assignments of this course.

Click here to view the Sekaran diagram on the research process.

The analysis itself should be a comparative assessment of how well the author (or authors) of the selected research have fulfilled (or not) each of the steps and sub-steps presented in figure 4.1 of the textbook (please note: it is highly recommended to review Chapters 4 through 6 in the Sekaran book for a refresher on the earlier research processes that have been covered in this course). The focus of the analysis should be on the research process, not as much on the research content itself. Be careful not to paraphrase what the author(s) has already stated in the published research. Again the analysis should be on assessing the adherence to the research process. Look at not only each step (and sub steps) but also how each step serves as a "stepping stone" for the next step. The interrelationships among the steps are also relevant to the analysis.

View Full Posting Details