RT Article T1 Understanding Offender Needs Over Forms of Isolation Using a Repeated Measures Design JF The prison journal VO 99 IS 6 SP 639 OP 661 A1 Campagna, Michael F. A1 Hamilton, Zachary K. 1979- A1 Stohr, Mary K. A1 Drapela, Laurie A. 1967- A1 Kowalski, Melissa A. A1 Mei, Xiaohan A1 Tollefsbol, Elizabeth Thompson A1 Woo, Youngki A2 Hamilton, Zachary K. 1979- A2 Stohr, Mary K. A2 Drapela, Laurie A. 1967- A2 Kowalski, Melissa A. A2 Mei, Xiaohan A2 Tollefsbol, Elizabeth Thompson A2 Woo, Youngki LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/1743035306 AB A number of studies find that solitary confinement is associated with mental impairment. Yet, confinement dosage and which individual and exogenous variables lead to mental impairment have received less attention. This study of 2 years of data on disciplinary segregation male inmates employs a repeated measures design to examine how isolation affects mental health and psychological needs. The findings indicate that the duration of disciplinary segregation and incarceration, incidence of homelessness, and other individual-level factors had deleterious effects on mental health and psychological needs. Vocational programming and a high school education were found to be protective factors for psychological needs. K1 Epidemiology K1 Homelessness K1 Mental Health K1 Repeated measures K1 solitary confinement DO 10.1177/0032885519877356