A learning theory given by Sheriff and Cantril is known as:

Sherif and Cantril highlighted the role of personal involvement in shaping and maintaining attitudes.

Why the other named theories are not correct: Field Theory: Developed by Kurt Lewin; focuses on psychological forces within a person’s life space rather than on ego-involvement in attitudes.

Insight Theory: Associated with Gestalt psychologists (e.g., Wolfgang Köhler); explains sudden problem-solving insights, not the personal-commitment aspect emphasized by Sherif and Cantril.

Conditioning Theory: Classical and operant conditioning (Pavlov, Skinner) explain learning via association and reinforcement, not the ego-involvement concept.

Quick tip: Match each theory to its originator and core focus. That helps rule out distractors and identify the correct theory based on what it explains.