Psychotherapy is based on the same principles as psychoanalysis but differs in two key respects: patients are seen less frequently (once or twice, rather than three or four times weekly), and patients are seated rather than supine. A determination of suitability for psychoanalysis versus psychotherapy is made according to several factors, assessed during an initial consultation, including: the nature and extent of the patient’s presenting difficulties; the patient’s life situation; and logistical considerations such as sessions times and fees.