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"Despite widespread speculation that syndrome co-occurrence undermines treatment outcomes, this hypothesis has not been fully examined within clinical care settings. To address this gap, the authors investigated the relation between syndrome co-occurrence and outcome among 325 clinically referred youths. For every syndrome, higher initial severity was predictive of greater treatment gains and higher posttreatment symptom levels; contrary to speculation in the literature, co-occurrence effects were rare and modest in size, accounting for 0.6% of outcome variance on average. The results suggest that co-occurrence, though common in youth clinical care, is not an obstacle to treatment success in most cases. In addition to its substantive findings, the study illustrates how a dimensional approach can be used to shed new light on co-occurrence in clinical care."

"The authors conducted a large-scale study of terrorism in Israel via telephone surveys in September 2003 with 905 adult Jewish and Palestinian citizens of Israel (PCIs). Structural equation path modeling indicated that exposure to terrorism was significantly related to greater loss and gain of psychosocial resources and to greater posttraumatic stress disorder (PTSD) and depressive symptoms. Psychosocial resource loss and gain associated with terrorism were, in turn, significantly related to both greater PTSD and depressive symptoms. PCIs had significantly higher levels of PTSD and depressive symptoms than Jews. Further, PTSD symptoms in particular were related to greater authoritarian beliefs and ethnocentrism, suggesting how PTSD may lead to a self-protective style of defensive coping."

"This meta-analysis examined whether writing about stressful experiences affects health care utilization (HCU) compared with writing on neutral topics or no-writing control groups. Randomized controlled trials of 30 independent samples representing 2,294 participants were located that contained sufficient information to calculate effect sizes. After omitting one study as an outlier, the effects were combined within 3 homogeneous groups: healthy samples (13 studies), samples with preexisting medical conditions (6 studies), and samples prescreened for psychological criteria (10 studies). Combined effect sizes, Hedges's g (95% confidence interval), with random effects estimation were 0.16 (0.02, 0.31), 0.21 (-0.02, 0.43), and 0.06 (-0.12, 0.24), respectively. Writing about stressful experiences reduces HCU in healthy samples but not in samples defined by medical diagnoses or exposure to stress or other psychological factors. The significance of these effects for individuals' health is unknown"

"Medical information can improve health, and there is an enormous amount of health information available on the Internet. A randomized clinical trial tested the effectiveness of an intervention based on social?cognitive theory to improve information use among people living with HIV/AIDS. Men and women (N 􏰀 448) were placed in either (a) an 8-session intervention that focused on Internet information consumer skills or (b) a time-matched support group and were followed to 9 months postintervention. The Internet skills group demonstrated greater Internet use for health, information coping, and social support compared with the control group. The authors conclude that people with HIV infection may benefit from increased access to health information on the Internet and that vulnerability to misinfor- mation and fraud can be reduced through behavioral interventions."

"Sarafino draws from the research and theory of many disciplines in order to show psychologists how psychology and health affect each other. The new edition has been updated to include new research and data. New discussions are included on health care systems. Significant new information is also presented on prevention and intervention, especially for teens? risky behaviors. In addition, international examples are included to broaden the psychologist?s view of health issues around the world and highlight what works in the field."