CABS Overview

CABS Wave 2 Revisions

OVERVIEW

Since Wave 1 of the CABS was fielded from January 21–February 2, 2021, there have been significant changes to available COVID-19 vaccines, vaccine eligibility, COVID-19 variants, and public health recommendations. The CABS Wave 2 questionnaire has been revised to account for such developments and in anticipation of forthcoming developments. Below is a summary of these revisions.

Additions and modifications to existing items include the following:

• We modified language to reflect the fact that there are now multiple FDA-authorized COVID-19 vaccines, including the one-dose Johnson & Johnson vaccine.

• We added items to assess the timeframe for waiting to get vaccinated, importance of choosing which COVID-19 vaccine one gets, ease of scheduling vaccine appointments, double-masking behavior, concerns about protection against variants, and perceptions of vaccination among friends/family.

• We added a subsection at the end of Section 1 to assess parent intentions to and beliefs about vaccinating their children once eligible. Respondents are first asked if they are parents to minors; parents are asked to indicate child age, vaccination behavior (if already eligible to be vaccinated), and intentions to vaccinate if not yet eligible and/or unvaccinated. Parents are then asked a series of belief items relevant to their child/children and COVID-19 vaccines. As we expect that emergency use authorization for children ages 12–15 will be granted prior to Wave 2 fielding on May 18, 2021, children in this age group will be considered eligible to be vaccinated.

• We revised the campaign recall items to reflect past 4-month campaign content.

• We added items to evaluate awareness, use, and perceptions of the vaccines.gov website, as well as awareness of, use of, and intentions to use the CDC 800 number and text messaging short codes to schedule vaccination appointments.

To reduce participant burden and ensure a median completion time of ≤35 minutes (median completion time for Wave 1 was 40 minutes), we removed items from the survey that are less relevant to the research questions guiding our evaluation and/or were captured at Wave 1. Items removed include those relevant to the following topics:

• Handwashing

• Flu vaccination

• COVID-19 symptoms and testing, with the exception of select items

• Clinical trials

• Sociodemographic/housing items previously captured that are unlikely to change