Based on the descriptions provided:
1. Alice, who implements a strict routine, expects obedience, and uses punishments, fits the description of authoritarian parenting. This style is characterized by strict rules, high demands, and low responsiveness to a child's needs or feelings.
2. Robert, who acts like a friend to his son, is emotionally nurturing but lacks consistent rules, falls under permissive parenting. This style involves being warm and loving but having few expectations or demands, leading to children having freedom without much guidance.
3. Sally, who encourages her son to make decisions, supports autonomy while maintaining standards of behavior, represents authoritative parenting. This approach combines warmth and responsiveness with clear rules and expectations, fostering independence and self-discipline in children.