History and extraction [edit]. The name tea tree is used for several plants, mostly from Australia and New Zealand, from the family Myrtaceae, related to the myrtle.The use of the name probably originated from Captain Cook 's description of one of these shrubs, that he used to make an infusion, to drink in place of tea.ea tree oil is toxic when taken by mouth, but is widely used in low concentrations in cosmetics and skin washes. Tea tree oil has been claimed to be useful for treating a wide variety of medical conditions.
While the average beginning salary for industrial-organizational psychologists with a masterâs degree is about $50,000, experienced industrial-organizational psychologists with a doctorate degree can earn up to $250,000 per year.owever, more and more school psychologists are earning doctorate degrees in psychology (PhD, PsyD or EdD). In addition to an advanced degree, many schools also require the completion of a 60-credit school psychology specialist program.
The salaries of cognitive psychologists will typically vary, depending on which specialty they choose. Psychologists across all areas of specialization earned a median salary f $86,510 in 2010. Psychology professors at universities, on the other hand, earned a median salary of $74,320.On the higher end of the salary spectrum, cognitive psychologists that worked in scientific research centers and physicians' offices made $100,790 and $109,600, respectively.sychology professors at universities, on the other hand, earned a median salary of $74,320. On the higher end of the salary spectrum, cognitive psychologists that worked in scientific research centers and physicians' offices made $100,790 and $109,600, respectively.