Tamaño de muestra en estudios clínicos

Camacho-Sandoval, Jorge

doi:10.51481/amc.v52i6.347

Cited by 4 publications

(1 citation statement)

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“…Our findings partially support this first hypothesis, as we have observed the desired effects of the programme on self‐efficacy in ageing, which was statistically significant in within‐group pre‐post comparisons. The failure to identify any between‐group differences could be explained by the small sample size, which limits the statistical power of the analyses performed and the likelihood of finding statistically significant differences (Camacho‐Sandoval, 2008).…”

Section: Discussionmentioning

confidence: 99%

Benefits of a psychosocial intervention programme using volunteers for the prevention of loneliness among older women living alone in Spain

Lorente-Martínez

Brotons-Rodes

Maciá

2021

Health Social Care Comm

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This study aims to analyse the effectiveness of a psychosocial intervention programme in preventing loneliness and increasing self‐efficacy and social participation among older women living alone in Spain. A sequential, nested experimental design was used, with a primary quantitative quasi‐experimental pre‐post study with a control group (CG) and a secondary qualitative study. A total of 48 women participated, and 34 of them (the experimental group, EG) received a 25‐hour psychosocial support intervention delivered by volunteers who focused on three aspects: conversation, attribution retraining and behavioural activation. The other women remained on the waiting list (CG = 14). The women (EG and CG) were all interviewed before and after the intervention and a follow‐up of the EG was performed at 6 months (N = 25). Semi‐structured interviews were used to collect sociodemographic and health‐related data, as well as data on satisfaction with the programme and its benefits. Validated instruments were used to collect data on the dependent variables (self‐efficacy in ageing, subjective social participation and loneliness). Quantitative and qualitative methods were used for data analysis. Compared to the pre‐test results, women in the EG improved their self‐efficacy in ageing (t‐test: −2.246; p: 0.031; d: 0.30), and, more specifically, their self‐efficacy in managing socio‐emotional problems such as loneliness (t‐test: −1.995; p: 0.054; d: 0.25) and in managing their health (t‐test: −2.450; p: 0.020; d: 0.47). No significant differences were observed between the follow‐up and the post‐test results, meaning that the changes identified after the intervention remained stable. Four additional categories of benefits were identified in the participants' discourses. In conclusion, the intervention appears to be beneficial and effective in improving self‐efficacy, which is a well‐established predictor of loneliness in old age, in a group of vulnerable individuals. Further studies on this type of community intervention are necessary to prevent loneliness among older people.

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Section: Discussionmentioning

confidence: 99%