April - June and Late Oct can be a good time to visit Phu Quoc with less crowds, cheaper prices and fairly good odds of reasonable weather. You will find that April and May are the hottest months with temperatures reaching 35 degrees and humidity around 80% to 85%.
Psychology as a self-conscious field of experimental study began in 1879, when Wilhelm Wundt founded the first laboratory dedicated exclusively to psychological research in Leipzig, Germany. Wundt was also the first person to refer to himself as a psychologist.
Watson began teaching psychology at John Hopkins University in 1908. In 1913, he gave a seminal lecture at Columbia University titled Psychology as the Behaviorist Views It, which essentially detailed the behaviorist position. According to John Watson, psychology should be the science of observable behavior.