Answer: unconditional positive regard
Explanation: Unconditional positive regard is a concept developed by the psychologist Carl Rogers which is the basic acceptance and support of a person irrespective of the person's words or actions.
Rogers believed that unconditional positive regard is essential for healthy development and that through this, humans can take responsibility for themselves. Humanistic psychologists believe that by showing the client unconditional positive regard and acceptance, they are providing the best possible conditions for personal growth.
This is what Deedee's father is hoping to achieve with his daughter i.e by showing her unconditional love and acceptance, Deedee would improve in regards to her spelling.