People are often taught using a combination of instruction and practice. In prior research, we have distinguished between model-based knowledge (i.e., acquired from explicit instruction) and experience-based knowledge (i.e., acquired from practice), and have argued that the issue of how these types of knowledge (and associated learning processes) interact has been largely neglected. Two experiments explore this issue using a dynamic control task. Results demonstrate the utility of providing model-based knowledge before practice with the task, but more importantly, suggest how this information improves learning. Results also show that learning in this manner can lead to "costs" such as slowed retrieval, and that this knowledge may not always transfer to new task situations as well as experientially acquired knowledge. Our findings also question the assumption that participants always acquire a highly specific "lookup" table representation while learning this task. We provide an alternate view and discuss the implications for theories of learning.
The purpose of this study was to reevaluate psychometric properties of the Intrinsic Spirituality Scale (ISS) and to compare its results to the original psychometric report. Attendees of Alzheimer's caregiver support groups constituted the sample, relevant to this measure given their traditional, frequent use of spirituality as a coping resource. Data were randomly split for factor and reliability analyses (N 1 = 152) and validity analysis (N 2 = 152). Factor analysis on the ISS loaded all items on a single dimension of spirituality. Reliability was strong. Convergent validity was suggested via significant correlations with prayer measures. Enhanced with the original findings, these results lend credibility to the ISS as a viable spiritual assessment tool. The ISS offers social service professionals a valuable tool for assessing spirituality that is inclusive of individuals whose spirituality is nontheistic or for whom spirituality exists independently from, or outside of, organized religious structures. Future analyses with additional populations may broaden the ISS applicability among persons with diverse demographic and spiritual backgrounds.
Myriad factors have been found to have an impact on delinquent behavior and traumatic stress. This study proposes a model that tests the relationship between common predictors of delinquency (neighborhood condition, antisocial peer socialization, and exposure to violence) with traumatic stress. Serial mediation was used to test the relationships between these predictors and traumatic stress. Results indicate the mediation effect between neighborhood conditions and traumatic stress significantly reduces the total effect. Implications for traumatic stress in the context of delinquent behavior are discussed.
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