behavioural approach

considers environmental conditions and believes all behaviour and thus abnormal behaviour is due to learnt experiences. faulty learning happens through classical, operant and slt

classical conditioning

explains how probias develop. The NS that produces no fear e.g. dog is paired with UCS (something that automatically produces fear e.g loud nose/barking. This association turns the NS into the CS. 

supporting evidance: watson and rayner - little albert...

they conditioned little albert. All small children are scared of a loud nosie so a loud bang was repeatedly paired with the presence of the white rat - eventually little albert was scared of the white rat and…