US Migrating
type: Agent

Official Government Data Source
type: Distribution
access URL: https://www.samhsa.gov/data/report/p-value-tables-4
media type: text/html
description: Visit the original government dataset for complete information, documentation, and data access.
format: HTML
issued: 2025-07-24T10:55:21.838780
modified: 2025-09-24T19:54:02.220634

P-Value Tables
type: Dataset
contact point: Organization
  fn: SAMHSA
keyword: data-quality
keyword: AmeriGEO
keyword: samhsa
keyword: GEOSS
keyword: survey-data
keyword: GEO
keyword: United States
keyword: North America
keyword: mode-effect
keyword: National
keyword: CKAN
keyword: methodological-concerns
keyword: AmeriGEOSS
theme: {SAMHSA}
description: Substate estimates for these years are no longer available due to methodological concerns with combining 2020 data with data from 2018 and 2019. We apologize for any inconvenience or confusion this may cause.Because of the COVID-19 pandemic, most respondents answered the survey via the web in Quarter 4 of 2020, even though all responses in Quarter 1 were from in-person interviews. It is known that people may respond to the survey differently while taking it online, thus introducing what is called a mode effect.When the state estimates were released, it was assumed that the mode effect was similar for different groups of people. However, later analyses have shown that this assumption should not be made. Because of these analyses, along with concerns about the rapid societal changes in 2020, it was determined that averages across the three years could be misleading.For more detail on this decision, see the 2018-2020substate data page.
issued: 2025-07-14
modified: 2025-09-06