How would you assess the life skills of a student?
It might be a part of the formative assessment but cannot be evaluated quantitatively. What you need is a rubric. In education terminology, a rubric is a scoring tool used to evaluate performance, a product, or a project. It has three parts:
1) performance criteria;
2) rating scale;
These dimensions are generally referred to as criteria, the rating scale as levels, and indicators as descriptors.