The phrase "difficult temperament" refers to someone who is generally hard to handle or manage. It may describe a person who is prone to being disagreeable, challenging, or moody. Full definition
But when a mother's capacity to do so is limited by her own personality or stressful conditions then infants with difficult temperament or problem behaviors are at risk for developing attachment insecurity. (personalityresearch.org)
Parenting has been linked to the development of difficult temperament and behaviour problems [39]. (link.springer.com)
However, to our knowledge there are no studies examining whether difficult temperament and psychological problems in early childhood are linked to subsequent problems attaining nighttime bladder control. (link.springer.com)