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Related Concept Videos

Surveys02:16

Surveys

Often, psychologists develop surveys as a means of gathering data. Surveys are lists of questions to be answered by research participants, and can be delivered as paper-and-pencil questionnaires, administered electronically, or conducted verbally. Generally, the survey itself can be completed in a short time, and the ease of administering a survey makes it easy to collect data from a large number of people.

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Measuring the Switch Cost of Smartphone Use While Walking
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Computer-assisted self-interviews: a cost effectiveness analysis.

Jennifer L Brown1, Peter A Vanable, Michael D Eriksen

  • 1Syracuse University, Syracuse, New York 13244-2340, USA.

Behavior Research Methods
|April 17, 2008
PubMed
Summary

Computer-assisted self-interview (CASI) is more cost-effective than paper questionnaires for large studies. While CASI has high initial costs, its long-term value increases with sample size and repeated use.

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Area of Science:

  • Health behavior research
  • Survey methodology
  • Health informatics

Background:

  • Computer-assisted self-interview (CASI) is increasingly replacing traditional paper-and-pencil questionnaires (SAQs).
  • Assessing the cost-effectiveness of CASI versus SAQ is crucial for researchers.
  • Understanding the financial implications of different survey modalities is essential for study design.

Purpose of the Study:

  • To develop theoretical cost models for comparing CASI and SAQ.
  • To evaluate the cost-effectiveness of CASI and SAQ in a health behavior study.
  • To guide researchers in selecting the most economical survey assessment modality.

Main Methods:

  • Developed theoretical cost models with specific parameters for CASI and SAQ.
  • Conducted a comparative cost analysis within a health behavior study.
  • Administered both CASI (n=100) and SAQ (n=100) questionnaires to assess costs.

Main Results:

  • CASI demonstrated lower cost-effectiveness than SAQ for a single study due to high initial investment.
  • The cost-effectiveness of CASI improved significantly with larger sample sizes.
  • Utilizing CASI software across multiple studies also enhanced its cost-effectiveness.

Conclusions:

  • CASI is less cost-effective than SAQ for small, single-use studies.
  • CASI becomes the preferred, more cost-effective option for large-scale health behavior research.
  • Researchers should consider sample size and software reusability when choosing between CASI and SAQ.