Classification means to sort out the items of a given group on the basis of a certain common quality they posses and then spot the stranger or odd one out.
In this test, you are given a group of certain items, out of which all excepts one are similar to one another in some manner. The child is required to choose this one item which does not fit into given group.
In this case an 8 year old can know the difference between the irises and geraniums, that they are different types of flowers he/she can classify them.
Explanation: Classification simply means the ability to group or segment objects, species or materials into classes or divisions based on various characteristics. The characteristics employed in grouping objects or species belonging to a particular class must be present in all species belonging to that class of objects or species. Classification is by an individual's clear or sound reasoning.
The ability to realize that geraniums and irises are flowers is a mastery of logical Classification, even though they could still possess difference such as sepal length, color and so on which could be used for further Classification.
The abnormal functioning would be due to chemical imbalances in the prefrontal cortex (PC), since PC is the responsible for behavior including appropriate social behavior, judgment and impulse control.
There are two categories, needs and wants. Needs are essential items that we need to survive. Wants are things that we want and are often called luxuries. You don't need them to live but you want to have them and it's useful sometimes to have them.