Quantifying Observations:
When the behaviours specified have to provide certain measurement then some form of quantification is required. The quantification usually takes the form of counting. The count may be of number of times that a subject shows a particular form of behaviour during a period of observation. Here observer should be sure of when one act ends and the next begins. It is wise to break the period of observation into short segments and observer can then watch occurrence or non-occurrence of particular behaviour under specified categories.