Procedure: Watson & Raynor used a labartory experiment to test their theory. When Little Albert was about 9 months old, they presented him with a range of stimuli (e.g. a rabbit, monkey, burning newspaper white rat) and he showed no fear of any of them.When Little Albert was 11 months and three days old, the experimental procedure began. white rat was presented to Albert. He began to reach for it but Just as his hand touched the animal the steel bar was struck immediately behind his head. The infant jumped violently and fell forward, burying his face in the mattress, showing fear reaction