1. Short title This Act may be cited as the Improving Measurements for Loneliness and Isolation Act of 2023 . 2. Working Group on Unifying Loneliness Research (a) Definitions In this section: (1) The term isolation means the objective lack of social relationships or limited social contact with others. (2) The term loneliness means a subjective feeling of being isolated. (b) Establishment The Secretary of Health and Human Services (in this section referred to as the Secretary ) shall establish a national working group, to be known as the Working Group on Unifying Loneliness Research (in this section referred to as the Working Group ), to formulate recommendations for standardizing the measurements of loneliness and isolation. (c) Goals The goals of the recommendations under subsection (b) shall be the following: (1) Collaboration, cooperation, and consultation among Federal departments and agencies with respect to developing standardized measurements of loneliness and isolation for the purposes of— (A) having standardized measurements for use in public and private research, including surveys across varying populations, with the ability to capture the level of granularity needed to guide strategic decision making, planning, and evaluation of strategies to combat loneliness and isolation; and (B) providing reliable, consistent measurement tools for use across fields and industries in health care. (2) Collaboration, cooperation, and consultation among Federal departments and agencies with respect to developing standardized definitions of loneliness, isolation, and relevant terms associated with loneliness and isolation for the purposes of education, awareness, and understanding of the terms for the general public. (3) Assessment of the alignment of previous methods of measuring loneliness and isolation in the public and private sectors. (d) Composition The Working Group shall be composed of— (1) senior-level representatives of— (A) the Department of Health and Human Services