analysing experiment

• accuracy 


  refers to how close a measurment is to the true or accepted value. how accurate were the measurments made etc.
• validity 


  how well you have controlled your experimental variables in order to maintain a fair test. it refers to how well an experiment investigates the aim or tests underlining the hypthothesis
• reliability


  experiements need to be repeated. this is to increase reliablity. experiements that have 2-5 trials and the results are averaged have better reliablity.
• conclusions 


  shows a relationships between the variables based on the data. making a conclusion from a experiement invovles comparing comparing experimental results with those predicted from the hypthosises