With reference to Sigmund Freud's theory of psychosexual development, if an adult displays an anal-retentive personality characterized by extreme cleanliness, stubbornness, stinginess, rigid rule-bound behavior, and a tendency to control everything, Freud's theory attributes this developmental fixation to improper or harsh parental training during which stage?

According to Sigmund Freud's theory of psychosexual development, the Anal Stage typically occurs between 1.5 and 3 years of age, where the child's focus is centered on bladder and bowel control.

Key Concepts:

• Harsh Toilet Training: If parents are overly strict or rigid during toilet training, it can lead to fixation.
• Anal-Retentive Personality: Results in traits such as extreme orderliness, stubbornness, stinginess, and meticulousness in adult life.