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.
qualitative observation is the method of identifing a compound such as salt analysis,etc,. and quantitative is the calculation of the amount of a particular compound in â¦ a given sample such as asseys.. 27 people found this useful.