One strength of the behaviourist approach is that it is scientific in its nature. This is because this approach is very scientific with everything proven and supported by lab experiments. Behaviourist believe that through the use of scientific methods, we can analyse and compare behaviour. Control over variables can see cause and effect. Behaviour should be studied objectively and variables should be operationalized (breaking it down to simple factors)
There are a number of different examples of the scientific nature of the behaviourist approach. Pavlov work on dogs was a scientific experiment and was conducted objectively. By operationalizing variables such as the sound of the bell he was able to conclude that classical conditioning could be used develop new behaviour. Banduras work was conducted under lap experiments. One of yhr most scientific methods whereby the children were assigned to experimental conditions (aggressive group) or control group (non aggressive) by changing the variables Bandura could conclude that aggression was due to SLT.
Another strength of the behaviourist approach is that it has been successfully applied in society. Most importantly in the treatment of mental disorders and in education. In education operant conditioning underlies successful teaching techniques. Positive reinforcement and punishment have helped to shape behaviours in the classroom. Classical conditioning principles are applied in systematic desensitisation to help people who suffering from phobias.
There are a number of different examples of successful applications of the behaviourist approach. Skinner applied the principles of operant conditioning to teaching and designing a mechanical programmed instruction device. Skinner believed that the classroom teaching was often ineffective because different students learn at different rates and reinforcement are therefore variable to be effective.