Part 1:

Using OHS examples describe the differences between;

precision
accuracy
variability
reliability and
validity/.

Part 2:

The scientific method is a logical and rational way of investigation that helps us to organise our thoughts and procedures and generally we can identify 7 specific steps in this process, these are:

1. Observation

2. Asking a critical question

3. Developing a hypothesis

4. Making a prediction that can be tested

5. Performing experiments to test the prediction

6. Data collecting and analysis

7. Making a logical conclusion based on experimental results

Task: You observe that workers in a large open plan office environment tend to complain of headaches by mid-morning, particularly towards the end of the working week and the absenteeism rate amongst this group is much higher that among other employees.

Describe how you would use the "7 steps" to investigate this issue.