The family unpredictability is defined as a lack of consistency in standards of familiar behaviour and the familiar regulation systems. It is interesting for the understanding of how the family, and particularly the parental subsystem exerts its roles and executive power. Higher family unpredictability has been associated with higher disturbances of the familiar and individual development. This paper presents the validation of a Family Unpredictability Scale (FUS) described by Lisa Ross and Elizabeth Hill, for Portugal. It also evaluates the scale abilities to discriminate families with diverse perturbation levels in psychosocial functions. The lower educational level of parents was associated with higher levels of unpredictability.
Family unpredictability; FUS; Assessment; Risk
