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.
Psychology is a relatively new science which gained popularity in the early 20th century with Wilhelm Wundt. In the zeal to learn about the human thought process and behavior, many early psychiatrists went too far with their experimentations, leading to stringent ethics codes and standards.