Six Sigma Tool Navigator: The Master Guide for Teams

2017-07-07 02:10:07

AKA

N/A

Classification

Data Collecting (DC)

Tool description

Questionnaires are useful in a data collection process that requires a large amount of data on a specific topic or problem area. The use of questionnaires is cost-effective, administratively less time consuming, and flexible for different mailing modes such as direct mail, electronic mail, or fax. Questionnaires must be carefully designed to provide valid, reliable, and unbiased response data. In order to increase the usually low response rate for mailed questionnaires, a follow-up telephone call or remailing is helpful.

Typical application

To complete an organizational research project that uses a self-administered questionnaire for data collection.

To collect specific data from a large group in a relatively short time at reasonable cost.

Problem-solving phase

→	Select and define problem or opportunity
→	Identify and analyze causes or potential change
	Develop and plan possible solutions or change
	Implement and evaluate solution or change
	Measure and report solution or change results
→	Recognize and reward team efforts

Typically used by

1	Research/statistics
	Creativity/innovation
	Engineering
	Project management
	Manufacturing
3	Marketing/sales
	Administration/documentation
4	Servicing/support
2	Customer/quality metrics
5	Change management

links to other tools

before

Data Collection Strategy

Sampling Methods

Demographic Analysis

Starbursting

Information Needs Analysis

after

Response Data Encoding Form

Surveying

Interview Technique

Checksheet

Fog Index

Notes and key points

Keep the questionnaire as short as possible. Only ask questions necessary for this data collection requirement.

Avoid open-ended responses. They are difficult to tabulate and analyze.

Group together questions of a particular format for easier completion and analysis.

Use multiple choice matrix questions for large data volume.

Prevent researcher bias when phrasing questions.

Use a panel of experts to review the draft questionnaire to check for clarity, understanding, and completeness.

Field-test completed questionnaires to reduce ambiguity. Use a similar group of respondents for this task.

Step-by-step procedure

STEP 1 As a first step, a team decides on the specific data requirements. A list of preliminary questions is developed.

STEP 2 The questionnaire is developed using appropriate questionnaire construction guidelines. A research text reference can be very helpful in this task. See example Various Question Formats and Example Questions.

STEP 3 The draft questionnaire is verified by all team participants so that the required data will be collected using the number and type of questions listed.

STEP 4 A small sample of the identified population of respondents is asked to assist in the field testing of the questionnaire. Final revisions are made.

STEP 5 On the basis of the size of the predetermined population, a sample is taken and questionnaires are mailed.

STEP 6 As the questionnaires are returned, the team checks the questionnaires (see response data encoding form), calculates a response rate, and decides if a follow-up mailing is needed.