Consider the Evidence:
We use arrows to indicate the relationship between the evidence and the model. Sometimes the evidence has the same relationship to more than one model, and sometimes the realtionships contradict each other. Many times a piece of evidence will relate strongly to one model, and not relate at all to another. These conditions are all possible, just remember that we are indicating how the evidence relates to a model in this step. We are not rating the value of the evidence just yet.
We use numbers from 0 - 3 to indicate the strength or value of the evidence. Some evidence is better than others. Evidence from a trustworth source will have more strength than annectodtal evidence (a story one has heard). Evidence must have proof to support it. The better the proof, the better the strngth of the evidence. We are not rating how the evidence relates to any particular model, but we are evaluating the quality of the evidence in this step.
Evaluate the quality of each piece of evidence independantly, and add it to the Matrix.
We use a matrix to organize all of oour data. The matrix is nothing more than a chart that helps us organize our thoughts - which will help us determine the model that best explains the data available.
Remember: Scientists need to modify your model as additional data becomes availabe.
Write a description of each piece of evidence in the Matrix. Do not refer to each piece of evidence by number or short name - others who look at your work won't undertsand what you mean. Always be sure to document the work you do so others can understand you.
Explaining how evidence fits with model
Explaining Matrix Criteria
Explaining contradictory evidence
No evidence mentioned
No evidence mentioned
No contradictory evidence mentioned
No Matrix Criteria
One evidence mentioned
Contradictory evidence mentioned
Explains one Matrix Criteria
More than one evidence discussed
Evidence mentioned & described
Contradictory evidence mentioned & described
Mentions several Criteria or explains one criteria
All evidence discussed
All evidence mentioned & described how it relates to model
Contradictory evidence described how it relates to model
Explains several Criteria