For the first one you can use learning that Kaylee has research that some spiders are very venomous and can cause serious harm to other organisms so this contributed to her fear. For the biological/evolutionary approach you can say that through early(or earlier) human’s experiences, spiders have been proven to be dangerous and caused fear that has remained throughout all this time in order to help help us survive. I’m not sure about OCD. Sorry:/
Kaylee has a phobia for spiders and other insects even though she has not had an experience with them according to the context of the question and because of this phobia she dislikes going for outdoor activities. the reason for her phobia is that she must have learnt from books or the experiences of other people that insects and spiders are dangerous to human hence the Learning perspective informs her character
Cecil a college student that is suffering from OCD is worried about his girlfriend getting infected by germs in his room even though his room is neat and in order tot get that thought off his mind he begins to count his heart beat . this kind of behavior is caused by the Psychoanalytical perspective ( the act of focusing on the unconscious mind rather than the conscious mind ) the unconscious mind here is his heartbeat.
