The assessments were performed around the monthly anniversary
date of the infant (i.e., 4, 5, or 6 months), within of seven days before
or after this date. The infants should be in an active or inactive alert
state (states 3 and 4) [25]. Data were recorded on the TSFI evaluation
forms and all assessmentswere filmed to confirm the score, if necessary.
The assessment could be interrupted to calm down or change the
infant's diaper, and resumed as soon as possible.