Parents' postnatal sense of security (PPSS): development of the PPSS instrument.
BACKGROUND: There is a need to develop an instrument that measures both the parents' experiences and sense of security during the first postnatal week. No instrument measuring positive dimensions which can be influenced and supported by the postnatal health care has been developed. OBJECTIVE: The aim of the study was to develop a specific instrument to assess both mothers' and fathers' postnatal s