The ALP is a nationally representative panel of 11,000 members across the United States of America aged 18 years and older who speak English or Spanish. Panel members have been recruited through various methods, such as random digit dialling and recruitment from existing surveys. Researchers can pay to administer online surveys with panel members, with over 450 surveys conducted thus far covering diverse topics. All respondent data collected with the ALP are accompanied by demographic information about each respondent, collected three times a year through a household information survey.