Janis: voorkomen door:

• group leaders should serve as impartial moderators in group meetings rather than attempting to control the decision alternatives that are recommended
• group members should critically evaluate decision alternatives and continually seek information that might support or refute the wisdom of a decision.
  

I'm going to encourage you a little, to help you get started. :)

I am going to encourage you a little, to help you get started :)
Since you looked us up and read the site enthousiastically, I would like to offer you a big discount.