Saijun Zhang

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Very little prospective research investigates how cannabis withdrawal is associated with treatment outcomes, and this work has not used the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5) thresholds for cannabis withdrawal. The sample included 110 emerging adults entering outpatient substance use treatment who were heavy cannabis(More)
Social capital refers to trust, norms, and social networks. One of the most important features of social capital is its claimed capacity of promoting economic well-being. Theorists have assumed that any such effects vary according to the nature of different types of social capital. Using longitudinal data from a nationally representative dataset, this study(More)
Despite decades of debate about the most effective ways to intervene with families reported to child protective services (CPS), little evidence exists regarding the types of services or approach that reduce children's risk of additional maltreatment. The current study used data collected during a statewide experimental evaluation of CPS to examine the(More)
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