Hey Heracles,
I think you bring up many interesting criticisms of clinical psychology however, I think that many of these are answerable when you consider the current philosophy of science in psychology as well as how psychologists deal with the problems that exist within their domain of study. With that said, I think there are some problems you didn't mention that are, in my opinion, much more important than the scientificity of psychology.
heracles wrote:I believe there is a fairly lengthy anti-psychology (not anti-psychiatry) discussion on Philosophy Forums, indeed maybe a few.
This is true. People do use the term "anti-psychology" but it's very unclear what people mean by that. I think many of the people who are against psychology don't understand that alternative paradigms in psychology like existentialism, gestalt and humanism are part of psychology's very rich subject matter. Maybe you can clarify some of the claims of anti-psychologists for me.
heracles wrote:The word "clinical" implies to me a claim or of scientific rigor and precision, and there are manuals that seem to roughly mirror the DSM. What I'm asking is why humanistic psychology for example is considered as falling under the "clinical" psychology label. Is there a body that defines and regulates what "clinical" psychology is and are the other "freer" and "more open" psychologies compatible with it's rigorous standards? I just don't understand their inclusion (in the Wikipedia article) in "clinical psychology".
All clinical psychology really studies is the application of psychological research and theory for clinical practice which is incredibly broad. There are psychologists who work in prisons, hospitals, psychiatric units, private practice, schools and businesses and what they do in these situations is entirely contingent upon what psychotherapy or intervention they are using. As for the claim that the word "clinical" signifies or represents scientific objectivity, I don't see how this really has any significance unless you are contending that this is deceptive.
With that said, there are no restrictions on what psychotherapy you can provide for clients however, many graduate programs focus exclusively on evidence based practices like Cognitive Behavioural Therapy, Dialectical Behavioural Therapy and Behavioural Interventions meaning that there are fewer and fewer clinicians doing psychoanalytical, existential and humanistic psychotherapy. Also, many insurance providers and government institutions are only willing to cover evidence based practices causing a further decline of alternative therapies and this decline may continue unless alternative therapies can explicate what their treatment is and subject it to experimental scrutiny.
So there are forces at work shaping what kind of treatments clinical psychologists are doing but these forces are largely driven by the goal of providing effective treatment for mental/emotional suffering and problems in living. Which makes sense right? If CBT, DBT and BI are the most effective we should do those until someone comes up with something better.
heracles wrote:I am also skeptical of "pigeon-holing" people's mental and emotional problems, just to meet some standard of scientific precision. It seems psychology needs to be as much art and insight as "science". I feel my mind and emotions are a complicated blend and may not fall into just one or a few precisely defined "disorders".
Although it's true that states of consciousness like the feeling of sadness are qualitative, it doesn't follow that we can't study them in a scientific way. In fact, this is why the Likert Scale was invented (
http://en.wikipedia.org/wiki/Likert_scale) and why researchers use pretest-posttest designs to compare individual's reported experiences with their reported experiences (that way there is no apples and oranges problem).
Hopefully I've been able to convince you that psychology does consider alternative paradigms and psychotherapies and that we can study private experiences in a reasonably objective manner however, there are some problems with clinical psychology that I promised to explain. So here they are.
(1) The effectiveness of psychotherapeutic treatment is always defined in terms of the reduction of symptoms of mental disorder which may not be in keeping with what client's actually want. For example, children diagnosed with paediatric Bipolar Disorder are sometimes given antipsychotic and mood stabilizing medications because it reduces the symptoms of the disorder however, what people seldom consider, among other things, is whether or not the reduction of symptoms is equatable with quality of life. If a child sits in a drooling heap all day the reduction in symptoms doesn't really matter.
(2) No clinical psychologist has been able to explain what mental disorders are supposed to be. Are they theoretical constructs, latent variables, undiscovered biological attributes, criteria or common/garden psychological concepts? (And no you can't say they're all of the above!

I hear this all the time... *face palm*).
(3) Many of the disorders in the DSM have no logical relationship with each other (paedophilia, narcissism, premature ejaculation, and schizophrenia...?) so their inclusion within a category seems senseless. Also, the criteria for inclusion in the category includes terms that are observer relative (i.e. function and deviance) making the concept disorder, for a lack of better words,
fuzzy. In DSM-5, the task force has taken the position that it cannot be defined in a logical and coherent way
Those are some problems I see. It's a shame that no one really cares about these
heracles wrote:Again, I'm more open to some of the psychologies---humanist, existential, etc.---but I'd want to explore them skeptically without someone seeing or resenting me as being "oppositional defiant" or something.
Not possible. You go against the current paradigm in psychology you get bonked on the head by the academic community. That's just the way it goes.
Take care.