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Individual Contribution in Brain-storming: Does Group Composition Make a Difference?
Wai-Kin Yip,Chun-Ming Chow,Kin-Wai Cheng,Chi-Ping Cheuk,Catherine McBride-Chang 대한사고개발학회 2007 The International Journal of Creativity & Problem Vol.17 No.2
Factors affecting individual performance in group tasks such as social loafing and social facilitation have been widely investigated. Past studies compared groups made up of friends or strangers based on prior acquaintance before the experiment, without directly manipulating the level of group cohesiveness. Based on Karau and William’s (1997) rationale about the effect of group cohesiveness on social facilita- tion and social loafing, we tested two hypotheses: (1) When individual members do brain-storming in high cohesiveness group, they work harder and generate more ideas (social facilitation). (2) When individual members do brain-storming in low cohesiveness group, they work less hard and generate fewer ideas (social loafing). Results supported the second hypothesis, but failed to support the first one.
Daphne Sze Ki Cheung,Patrick Pui Kin Kor,Cindy Jones,Nathan Davies,Wendy Moyle,Wai Tong Chien,Annie Lai King Yip,Suzanne Chambers,Clare Tsz Kiu Yu,Claudia K.Y. Lai 한국간호과학회 2020 Asian Nursing Research Vol.14 No.4
Purpose: The aim of this study was to investigate the feasibility and preliminary efficacy of a modifiedmindfulness-based stress reduction (MBSR) program and mindfulness-based cognitive therapy (MBCT)program for reducing the stress, depressive symptoms, and subjective burden of family caregivers ofpeople with dementia (PWD). Methods: A prospective, parallel-group, randomized controlled trial design was adopted. Fifty-sevenparticipants were recruited from the community and randomized into either the modified MBSRgroup (n ¼ 27) or modified MBCT group (n ¼ 26), receiving seven face-to-face intervention sessions formore than 16 weeks. Various psychological outcomes were measured at baseline (T0), immediately afterintervention (T1), and at the 3-month follow-up (T2). Results: Both interventions were found to be feasible in view of the high attendance (more than 70.0%)and low attrition (3.8%) rates. The mixed analysis of variance (ANOVA) results showed positive withingroupeffects on perceived stress (p ¼ .030, Cohen's d ¼ 0.54), depressive symptoms (p ¼ .002,Cohen's d ¼ 0.77), and subjective caregiver burden (p < .001, Cohen's d ¼ 1.12) in both interventionsacross the time points, whereas the modified MBCT had a larger effect on stress reduction, comparedwith the modified MBSR (p ¼ .019). Conclusion: Both the modified MBSR and MBCT are acceptable to family caregivers of PWD. Their preliminaryeffects were improvements in stress, depressive symptoms, and subjective burden. The modifiedMBCT may be more suitable for caregivers of PWD than the MBSR. A future clinical trial is needed toconfirm their effectiveness in improving the psychological well-being of caregivers of PWD.