wo-step fieldwork approach and three specific strategies are presented that have been found useful for developing theory that is tightly aligned with nursing practice. The strategies of theoretical selectivity, theoretical integration, and theory creation are described and an example of each presented. The strategies are an extension of the Hybrid Model of Concept Development. These strategies identify alternative paths for concept clarification and theoretical congruence through fieldwork in clinical settings. The focus of theoretical selectivity is elaboration of concept definition with selection among theories. In contrast, the focus of theoretical integration is the linking of a central concept with an existing theory or perspective in the prefieldwork phase and then using the full fieldwork to evaluate its usefulness. Lastly, the theory creation strategy emphasizes describing a phenomenon of interest, identifying influencing factors, and beginning to create relational statements. It is closest to standard inductive theory development.
This study investigated the effect of a 12-week pedometer-based intervention on daily step counts of 147 older adults randomly assigned to an intervention or wait-list control group (M age = 72.9 years, SD = 8.8). The intervention group significantly increased their daily step counts after 12 weeks (M=639, SD=2239) and continued to significantly increase during a 12-week maintenance period (M=680, SD=1721). The control group exhibited no change during the control period (M = -393, SD=2050) but had a significant increase in daily step counts (M=1580, SD=2305) when enrolled in the intervention. The pedometer-based intervention was effective in increasing participants' daily step counts.
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