In The Netherlands, a growing number of vocational education and training institutes are implementing competence-based approaches to learning, including new career guidance practices. These practices often involve instruments such as portfolios or personal development plans, and are aimed at supporting students in their search for a sense of direction, occupational choice and developing their identities. In this study perceptions of teachers, career counsellors and students on portfolios and personal development plans for career development were investigated at two vocational schools and one prevocational school. The results suggest that these instruments are perceived to be useful when used in a dialogical context. If used in a context without reflexive dialogues between teachers and students, students perceived the instruments as not useful and showed coping behaviour, such as not committing themselves to the actual goals or completing the instruments for external purposes/credits only.