Parental concerns with regard to the infant
Parental concerns regarding crying, nutrition and sleep behavior of the infant are assessed using three five-point Likert scales. An example item is ‘I worry about the crying of my baby’. Answer options range from ‘Strongly agree’ to ‘Strongly disagree’. On another five-point Likert scale, parents can rate if they worry about other things concerning the baby (‘Strongly agree’ to ‘Strongly disagree’), followed by an open text field where they can list things concerning the baby where they worry about.