strengths and weaknesses of experiments

• lab setting easy to gain consent becuase you can tell participants exactly what is going on . if they are told what thry are doing they might change their behaviour which could alter results
• when they come into lab their right to withdraw can be explained
• can control factors that cold change dependant vriable  by contolling other variables the experimenter can be certain that differences in the dependant variable have been caused by the different conditions
• the DV can be measured accurately

• giving full info may alter the way they behave this is called deception
• not knowing aims may upset some participants
• some experiementers need to deliberately decieve participants

to minimise harm:

• avoide using deception unless necessary
• avoide other problems such as embarasment
• explain real purpose asap
• allow to withdraw

experiments shoiuld try to represent real life as much as possible.