💡 Explanation:
✅ Correct Answer — D) Lack of motive
🔎 Explanation
✔️ Appropriate Timing of Stimuli Presentation:
In classical conditioning, proper timing between the conditioned stimulus and unconditioned stimulus is crucial for successful learning.
✔️ Repetition of Stimuli:
Repeated pairing of stimuli strengthens the conditioned response, making learning more effective.
✔️ Controlled Environment:
Pavlov conducted his experiments in controlled laboratory settings, which minimized distractions and enhanced the learning of associations.
❌ Lack of Motive:
🔹 Without motivation or relevance, the organism may not respond effectively to conditioning.
📕 Additional Information:
In Pavlov’s experiment, the dog's natural desire for food (motive) played a vital role in forming associations between bell sound and food.