1. Problem Definition
My colleague and I are planning to implement phone survey for data collection for our study’s sample. Prior the real survey, we have to test the phone questionnaire whether the survey can be finished in 20 minutes. The questionnaire consists of 30 questions, so we picked random respondents to examine how long it takes to finish the survey.
Problem Statement: does the duration of the survey within the expected duration?
2. The Feasible Alternatives
Based on the problem, I identify three possible results:
- The result shows the actual duration of the survey is the same with the expected duration.
- The result shows the actual duration is less than expected duration.
- The result shows the actual duration is more than the expected duration.
3. Tools and Technique
To answer the problem, several steps to solve the problem:
- Collect sample data;
- Determine number of class and frequency;
- Draw the histogram from the frequency table; and
- Interpret the histogram.
4. Selection of the Acceptable Criteria.
Table 1 shows the frequency table which we collected from respondents.
Table 1: Frequency Table
Then, we decided the number of classes that contribute to our analysis, next construct the frequency table.
Table 2: Number of Classes and Frequency
Then, we draw the histogram.
Figure 1 shows the frequency within 10-15 minutes is the highest. We are confidence the survey’s respondent can finish the interview less than 20 minutes with current questionnaire.
5. Post-Evaluation of the Result
Based on the calculation above, the result shows the chance of interview can be finished in 10-15 minutes is higher. We have to scrutinize the current questionnaire and make sure it collects the information we needed for the report.
Brassard, M. & Ritter, D. (2010). The Memory Jogger 2: Tools for Continuous Improvement and Effective Planning, pp. 91-100.
Histograms: Construction, Analysis, and Understanding. Retrieved from: http://quarknet.fnal.gov/toolkits/ati/histograms.html
Henning, J. 2009. Do phone surveys have a future? Retrieved from: http://www.research-live.com/features/do-phone-surveys-have-a-future?/4000692.article
Vicente, P., Reis, E., & Santos, M. Using Mobile Phones for Survey Research: A Comparative Analysis between Data Collected via Mobile Phones and Fixed Phones. Retrieved from: http://homepages.wmich.edu/~wmartz/assets/mobile-phones-survey-research.pdf