to improve the quality of an individuals life make sure that thay have a choice of e.g food, activities, what time they get up/go to bed, where they want to sit, when they want a bath/shower, make it person centred so that they enjoy what they do on a daily basis, therefore making them happier, active support is the best choice because it gives independance to the individual. To promote their independance staff should encourage and support them to take part in social, economic and cultural activities, help the individual to use equipment to aid their independance. Support informed choices by putting into place communication boards showing information in a way that is understood by the individual. Hope this helps and good luck, just finished my nvq 3 so if u need any help let me know x | 
