have you ever thought about someone when suddenly they telephoned you or appeared? This is the ‘speak of the devil’ effect. given the three possible explanations of correlations, how would you...

have you ever thought about someone when suddenly they telephoned you or appeared? This is the ‘speak of the devil’ effect. given the three possible explanations of correlations, how would you interpret this phenomenon? Test the correlation yourself: concentrate on a friend you haven’t seen for quite a while, and wait fi ve minutes. did he or she call or appear? Try concentrating on a few more friends in this way. how often do they call or appear as you concentrate? does your testing affect your view of the ‘speak of the devil’ effect?