At a glance
When conducting a CASPER in the field, it is important to inform the community of the upcoming survey, know the requirements and guidelines of face-to-face interviews, distribute public health materials, and conduct a just-in-time training.

Communications and press release
Prior to conducting the CASPER in the field, inform the community of the upcoming survey through:
- Press releases
- Official health department webpages
- Social media
Increased awareness of the CASPER can lead to increased participation.
Examples of press releases
Face-to-face interviews
Conduct CASPER through face-to-face interviews in the field. There are several advantages to conducting face-to-face interviews. These advantages include the following:
- A high response rate
- The ability to distribute health information or other materials (such as resource lists) to the community
- Directly connecting the community to local staff, increasing the visibility of and trust in the health department
- The ability to provide anecdotal information that can help guide response and recovery efforts, implementation of any recommendations or actions, and future plans (e.g., direct visual inspection of a disaster-affected area, common concerns overheard in the community not captured in the questionnaire)
CASPER interview teams should always have at least two members. The goal is to get a diverse team of two on aspects such as:
- Male/female
- Local/non-local
- Experienced/inexperienced
A traditional CASPER can have up to 30 teams (one per cluster). Keep in mind the availability of equipment, supplies, and personnel. Typically, a CASPER with 15 teams can be conducted in about 10 hours of midweek, afternoon/early evening data collection.
The CASPER interview tips provide a general guideline for making the interview successful. The Texas Department of State Health Services created a document of CASPER team member testimonials. The testimonials include team member experiences conducting CASPER in the field. They also include a short video developed by Harris County Department of Health on just-in-time training.
Public health materials
Take the opportunity to distribute public health materials while your interview teams are in the community. This information can range in topic:
- Health education related to the disaster
- Emergency preparedness:
- What is in an emergency supply kit
- Contact information for disaster services
- Other health information (e.g., upcoming influenza season information)
Give public health materials to selected households and any interested community member, regardless of participation status.
Examples of potential materials
- Lists of relevant resources (e.g., location of shelters, phone number of the vital records office, mental health hotline)
- Health education on carbon monoxide exposure, mold and mildew, or proper cleanup methods
- Supplies, such as insect repellent and sunscreen
Example materials
Just-in-time training
Training the interview teams is one of the most important aspects of conducting a CASPER. The following can invalidate the results and misrepresent the needs of the community:
- Inconsistent systematic random sampling
- Incorrect or incomplete forms
- Interviewer bias
Conduct a three to five hour just-in-time training either one day in advance or the morning of the first day of data collection. Details on just-in-time training are available as a PowerPoint and as a 508-compliant PDF.
Inform interview team members about:
- CASPER objectives
- Roles and responsibilities of team members
- How to select households to interview
- Safety instructions and potential hazards that may be encountered
- Logistics such as:
- When to contact headquarters while in the field
- Future meeting times
For more information on topics to cover in just-in-time training, please see CASPER Toolkit, Section 3.1.
Learn More
Check out the CASPER Toolkit, Section 3 for more information about how to conduct a CASPER.
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