Analyzing Assertion (A) and Reason (R) on Behavior Modification

This question asks us to evaluate two statements regarding behavior shaping techniques and a related phenomenon.

Analysis of Assertion (A)

Assertion (A) states: Shaping and Chaining can be used to establish any form of behaviour in any organism.

• Shaping involves reinforcing successive approximations toward a target behavior.
• Chaining involves linking a sequence of behaviors together.
• These are powerful operant conditioning techniques.
• However, the assertion uses absolute terms: "any form of behaviour" and "any organism".
• These techniques have limitations. They are constrained by the organism's biological predispositions, instincts, and physical capabilities. Not every conceivable behavior can be trained in every species using these methods alone.
• Therefore, Assertion (A) is false due to its overly broad and universal claim.

Analysis of Reason (R)

Reason (R) states: ‘Instinctive drift’ is a tendency to return to the type of behaviour the organism displays under natural conditions.

• Instinctive drift is a recognized concept in the study of learning and behavior.
• It describes the phenomenon where an animal's innate, instinctual behaviors (its natural behavior patterns) emerge and interfere with learned behaviors, causing the learned behavior to deteriorate or revert towards the instinctual pattern.
• The definition provided in Reason (R) accurately describes this concept.
• Therefore, Reason (R) is true.

Conclusion

Based on the analysis:

• Assertion (A) is false.
• Reason (R) is true.

This corresponds to Option 4, which states that (A) is false, but (R) is true.