Dear colleagues,

Recently I used VAS matrices to collect data in the criteria weights. In the inicial experiment respondents were not asked to asess all the 10 criteria presented in the VAS matrix mandatory. In the otger experiment users were asked to move all the slidės in the VAS matrix (I believed it might result for the better reliability). However, in the direct interview respondents told that they did not like that they mandatory have to asess ALL the criteria. My question - Does the mandatory matrix questions causes reliability issues in surveys instead of reliability increase?