One strength of a Lab Exp is that the extraneous varible can be controlled, and due to the use of standardised instructions and procudures, lab exp can be replicated. For example due to the high levels of control Banduras study can be repearted to check the validity of the findings. However a weakness of lab exp is that they take place in artifical environments so lack ecological validitiy. therefore banduras findings may not apply to everyday life. A further weakness is that demand characteristics may occur. For example the children in the bobo doll experiment mau have felt that they were suppose to hit the bobo doll
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