| 1. |
- Leijon, Matti, et al.
(författare)
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Improvement of physical activity by a kiosk-based electronic screening and brief intervention in routine primary health care : Patient-initiated versus staff-referred
- 2011
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Ingår i: Journal of Medical Internet Research. - : JMIR Publications Inc.. - 1438-8871. ; 13:4, s. e99-
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Tidskriftsartikel (refereegranskat)abstract
- Background: Interactive behavior change technology (eg, computer programs, Internet websites, and mobile phones) may facilitate the implementation of lifestyle behavior interventions in routine primary health care. Effective, fully automated solutions not involving primary health care staff may offer low-cost support for behavior change. Objectives: We explored the effectiveness of an electronic screening and brief intervention (e-SBI) deployed through a stand-alone information kiosk for promoting physical activity among sedentary patients in routine primary health care. We further tested whether its effectiveness differed between patients performing the e-SBI on their own initiative and those referred to it by primary health care staff. Methods: The e-SBI screens for the physical activity level, motivation to change, attitudes toward performing the test, and physical characteristics and provides tailored feedback supporting behavior change. A total of 7863 patients performed the e-SBI from 2007 through 2009 in routine primary health care in Östergötland County, Sweden. Of these, 2509 were considered not sufficiently physically active, and 311 of these 2509 patients agreed to participate in an optional 3-month follow-up. These 311 patients were included in the analysis and were further divided into two groups based on whether the e-SBI was performed on the patient's own initiative (informed by posters in the waiting room) or if the patient was referred to it by staff. A physical activity score representing the number of days being physically active was compared between baseline e-SBI and the 3-month follow-up. Based on physical activity recommendations, a score of 5 was considered the cutoff for being sufficiently physically active. Results: In all, 137 of 311 patients (44%) were sufficiently physically active at the 3-month follow-up. The proportion becoming sufficiently physically active was 16/55 (29%), 40/101 (40%), and 81/155 (52%) for patients with a physical activity score at baseline of 0, 1 to 2, and 3 to 4, respectively. The patient-initiated group and staff-referred group had similar mean physical activity scores at baseline (2.1, 95% confidence interval [CI] 1.8-2.3, versus 2.3, 95% CI 2.1-2.5) and at follow-up, (4.1, 95% CI 3.4-4.7, vs 4.2, 95% CI 3.7-4.8). Conclusions: Among the sedentary patients in primary health care who participated in the follow-up, the e-SBI appeared effective at promoting short-term improvement of physical activity for about half of them. The results were similar when the e-SBI was patient-initiated or staff-referred. The e-SBI may be a low-cost complement to lifestyle behavior interventions in routine primary health care and could work as a stand-alone technique not requiring the involvment of primary health care staff. © Matti Leijon, Daniel Arvidsson, Per Nilsen, Diana Stark Ekman, Siw Carlfjord, Agneta Andersson, Anne Lie Johansson, Preben Bendtsen.
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| 2. |
- Pareto, Lena, 1962-, et al.
(författare)
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A Teachable-Agent Arithmetic Game’s effects on Mathematics Understanding, Attitude and Self-Efficacy
- 2011
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Ingår i: AIED 2011, LNAI 6738. - Berlin, Heidelberg : Springer. ; , s. 247-255, s. 247-255, s. 247-255
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Konferensbidrag (refereegranskat)abstract
- A teachable-agent arithmetic game is presented and evaluated in terms of student performance, attitude and self-efficacy. An experimental pre-post study design was used, enrolling 153 3rd and 5th grade students in Sweden. The playing group showed significantly larger gains in math performance and self-efficacy beliefs, but not in general attitude towards math, than the control groups. The contributions in relation to previous work include a new educational game being evaluated, and an emphasis on self-efficacy in the study as a strong predictor of math achievements.
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| 3. |
- Sjödén, Björn, et al.
(författare)
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Transferring Teaching to Testing – an Unexplored Aspect of Teachable Agents
- 2011
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Ingår i: AIED 2011 LNAI 6738. - Berlin, Heidelberg : Springer Berlin/Heidelberg. ; , s. 337-344, s. 337-344, s. 337-344
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Konferensbidrag (refereegranskat)abstract
- The present study examined whether socio-motivational effects from working with a Teachable Agent (TA) might transfer from the formative learning phase to a summative test situation. Forty-nine students (9-10 years old) performed a digital pretest of math skills, then played a TA-based educational math game in school over a period of eight weeks. Thereafter, the students were divided into two groups, matched according to their pretest scores, and randomly assigned one of two posttest conditions: either with the TA present, or without the TA. Results showed that low-performers on the pretest improved significantly more on the posttest than did high-performers, but only when tested with the TA. We reason that low-performers might be more susceptible to a supportive social context – as provided by their TA – for performing well in a test situation.
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| 4. |
- Öinert, Johan, et al.
(författare)
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Commutativity and ideals in category crossed products
- 2010
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Ingår i: Proceedings of the Estonian Academy of Sciences. - : Estonian Academy Publishers. - 1736-7530 .- 1736-6046 .- 1406-0086 .- 2228-0685. ; 59:4, s. 338-346
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Tidskriftsartikel (refereegranskat)abstract
- In order to simultaneously generalize matrix rings and group graded crossed products, we introduce category crossed products. For such algebras we describe the centre and the commutant of the coefficient ring. We also investigate the connection between on the one hand maximal commutativity of the coefficient ring and on the other hand nonemptiness of intersections of the coefficient ring by nonzero two-sided ideals.
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