This document discusses challenges with data collection across different research domains. It identifies several categories of data collection barriers: researcher barriers like fatigue; participant barriers such as inaccurate self-reporting; environmental barriers pertaining to the data collection setting; and issues with survey design like unclear questions. Specific examples are provided from public administration, public health, distance education, environmental, and market research that illustrate challenges related to inconsistent or poor quality data collection due to a lack of standardized processes, inadequate training, political and legal constraints, and issues incentivizing participation or protecting privacy.