IMMI^SM panels are built from random samples.

SAMPLE DESIGN

Careful Sampling Design Yields Reliable Results

Interviewing every person exposed to your program or ad is impossible. That's why using the right sampling methodology to identify the panel members who will demonstrate your ad's effectiveness is critical.

Most IMMI panels are drawn using random sampling methodology that ensure precise estimation and reasonable inferences. We start with an RDD phone sample and contact potential research panel members via US Mail and telephone. Many attempts are made to contact potential panel members and enroll them. From this randomly recruited panel, your custom panel is built.

In rare cases, custom panels of low-incidence populations may be created from trusted opt-in sources.

Next: Recruitment