The aim of this study was to investigate the relationship between Adversity Quotient (AQ) and levels of perceived stress of middle-level managers employed in the Sri Lankan Non-Governmental Organisational (NGO) sector. Using a questionnaire survey 223 responses were collected. The data analysis included mean difference analysis and regression analysis. https://oclvfmairgge.blog-kids.com/35126181/methods-of-spatial-analysis-for-natural-ventilation-potential