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Guidelines

The Biology teachers of Tasmania put the following guide together to help students analyse, interpret and evaluate information and data gained from investigations. 

  1. Read information given carefully, highlighting any key words/phrases.
    Study graphs or tables and try to see any relationships in the data.
     
  2.  When analysing numerical data quote figures in your answer.
    Look for the control and compare other values with it.
     
  3. When evaluating methods, check that all aspects for experimental design have been satisfied.
     
  4. If the experiment has been done in an artificial environment? e.g. in the lab rather than in the normal environment, will this affect the interpretation of the data?
     
  5. If the experiment involves sampling from a population, has the sampling been carried out scientifically? 
    i.e.
  • is it random, to eliminate bias?
  • is the sample controlled with respect to age, sex, health etc
  • is the sample large enough to allow meaningful conclusions to be drawn?
  1. Do the results imply a CORRELATIONAL or a CAUSATIVE relationship? Consider why it is difficult to demonstrate causative relationships from studies on humans.
     
  2.  When criticising conclusions consider whether the conclusion is specific to the experiment, or have unjustified generalisations been made?

 

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