In partial fulfillment of the requirements for an introductory course in
psychology, first year psychology students participated in different
psychological experiments at the university. Of these, 116 undergraduates
(87 females, 29 males; mean age 19.10 years (SD=1.53)) volunteered to
participate in an online experiment on “Happiness” in response to an
inviting email. The experiment was developed with the Online Survey
Creator (Van Acker, 2009) and run over the Internet.