“…The most common are structured or non-structured selfreport instruments (Bartlett et al 2000, Meretoja 2003, Issel et al 2006, Poulton & McCammon 2006, Arnez & Hasson 2008 and methods based on observation, proof and demonstration (While et al 1995, Berkenstadt et al 2006, Brosnan et al 2006. Also tutor and peer evaluation (Das et al 2002, Chaves et al 2006, interviews (Girot 1993, Tabari Khomeiran et al 2006) and portfolios (Forker & McDonald 1996, Girot 2000, McMullan et al 2003) have been used.…”