HPH 2018 conference

Title: Reproducibility of the Revised Social Functioning Scale–short version in community-dwelling individuals with schizophrenia

PURPOSE: Social dysfunction is a core feature in individuals with schizophrenia. Individuals with schizophrenia who have social dysfunction impede patients’ performance in self-care, interpersonal relationship, and work function. Using an appropriate outcome measure is critical to monitor changes in social functioning. The Revised Social Functioning Scale–short version (R-SFS) is developed to assess comprehensive domains of social function. However, the reproducibility of the R-SFS remains unknown in community-dwelling individuals with schizophrenia. We aimed to examine the test-retest reliability of the R-SFS in community-dwelling individuals with schizophrenia.

METHOD: We collected data from 119 community-dwelling individuals with schizophrenia. Each patient was assessed twice, 2-week apart. The R-SFS consists of 27 items divided into 6 domains: 4-item interpersonal interaction, 5-item sociality, 5-item communications, 4-item leisure activities, 4-item ability of independence and 5-item performance of independence. Test-retest reliability was examined using intraclass correlation coefficient (ICC). An ICC value greater than 0.80 was considered to indicate excellent test-retest agreement; 0.60 to 0.79, good agreement; 0.40 to 0.59, moderate; and less than 0.40, poor.

RESULTS: For the overall social functioning, ICC value for total scores of R-SFS was 0.88 (0.83 – 0.91 at 95% confident interval). For the 6 domains of the R-SFS, ICC values for interpersonal interaction, sociality, communication, leisure activities, the ability of independence and performance of independence were 0.81, 0.77, 0.81, 0.76, 0.60 and 0.79, respectively.

CONCLUSIONS: The total scores and 6 domains of the R-SFS had excellent to good test-retest reliability in the community-dwelling individuals with schizophrenia. The good reproducibility of the R-SFS, except ability of independence, is sufficient for use in research contexts, providing useful information for the comparison of different respondents.

沒寫到reliability為什麼在臨床施測上是重要的。20180204

剛好看到一篇文章：

Test-retest: Agreement or reliability?

我覺得有趣。字面上，
reliability是不同時間的相關。
agreement是兩次的絕對一致性。
摘要提到：單純以pearson's r探討reliability,可能會出現不法得知差異是來自：受測者的實際變化，或是測量工具的誤差；進而造成結果的錯誤解釋。
所以，more focus should be given on the real interpretation of linear correlation是有必要的；因此BA plots就加入了。