Final answer:
The false criticism regarding psychotherapy in the question provided is that 'People who participate in psychotherapy often regret the experience.' This does not represent a common or a major critique of psychotherapy's effectiveness, unlike issues such as the initial crisis state or the need to justify expenses, which do attract scrutiny.
Step-by-step explanation:
The question asks for a reason that is NOT a criticism of the success of psychotherapy. The incorrect criticism is that 'People who participate in psychotherapy often regret the experience.' Critics often point out issues like clients being in crisis, forming attachments to therapists, or justifying the expenses as potential biases in evaluating psychotherapy's effectiveness. However, regretting the experience is not typically among the commonly cited criticisms and does not reflect the general outcome of psychotherapy. Psychotherapy is generally aimed at helping individuals overcome crises and it employs various approaches such as cognitive-behavioral therapy. The client-centered approach advocated by Rogers is particularly influential in encouraging a therapeutic environment that fosters a positive client-therapist relationship, which can be misconstrued as a dependency rather than a therapeutic bond. Moreover, clients' perceived need to justify costs might be seen as introducing bias into therapy outcomes. Evaluating the success of psychotherapy requires consideration of these factors and the complex, subjective nature of psychological treatment.