Making the world better, one answer at a time. Deodorant was around in ancient times but modern day deodorant was invented in 1888 by an inventor in Philadelphia, Pennsylvania.
Behavioral observations are a key component of cognitive psychology. Behavioral observations give cognitive psychologists a means of testing and evaluating theories about behaviors and a means of testing any predictions about those behaviors.
A qualitative observation is one that you can't count. A quantitative is one that you can. Here's an example. Let's say you need to make observations about a carrot. Some qualitative observations would be: it's orange, it's rough, it's pointy, it's firm.