八塊--[Oral]Restorative Benefits of Natural Greenness: A Meta-Analysis on Attention Restorative Theory

Using a meta-analysis, existing research comparing the effects of different environmental settings on perceived restorativeness was synthesized. Focusing on the general framework of restorative environments, this study quantitatively reviewed the correlation between 4 factors—being away, fascination, extent, and compatibility—of attention restoration theory. The ongoing literature search located 10 articles covering 2,070 participants and 118 scenes. Data suitable for a qualitative review were found in 6 of the articles, covering a total of 1,409 participants and 83 scenes. A considerable degree of heterogenecity existed in the data for all environments, indicating that results have not been reproducible. The quantitative data from the collected studies were also transformed into effect size (ES). In addition, 15 studied variables (e.g., researchers’ backgrounds, participants’ backgrounds, research design details, measuring tools, titles of published journal) were selected and analyzed using one-way ANOVA to relate ESs. The primary findings of this study suggested that different measuring scales produced different sizes of results; moreover, natural-based landscape was more effective than built landscape in regards to restorative benefits (mean ES of 1.84). As this study remains unfinished and article collection is an ongoing process, more implications for efficiently planning future work will also be discussed.