Not sure how useful this is but as at least an initial checklist seems fairly spot on, though obviously you would need to know how to test and score these attributes. I'm sure someone will correct me if I'm way off base.
http://en.wikipedia.org/wiki/Hare_Psychopathy_Checklist
Psychopathy Checklist-Revised: Factors, Facets, and Items[10]
Factor 1
Facet 1: Interpersonal
Glibness/superficial charm
Grandiose sense of self-worth
Pathological lying
Cunning/manipulative
Facet 2: Affective
Lack of remorse or guilt
Emotionally shallow
Callous/lack of empathy
Failure to accept responsibility for own actions
Factor 2
Facet 3: Lifestyle
Need for stimulation/proneness to boredom
Parasitic lifestyle
Lack of realistic, long-term goals
Impulsivity
Irresponsibility
Facet 4: Antisocial
Poor behavioral controls
Early behavioral problems
Juvenile delinquency
Revocation of conditional release
Criminal versatility
Other items
Many short-term marital relationships
Promiscuous sexual behavior
Early factor analysis of the PCL-R indicated it consisted of two factors.[12] Factor 1 captures traits dealing with the interpersonal and affective deficits of psychopathy (e.g., shallow affect, superficial charm, manipulativeness, lack of empathy) whereas factor 2 dealt with symptoms relating to antisocial behavior: (e.g., criminal versatility, impulsiveness, irresponsibility, poor behavior controls, juvenile delinquency).[12]
That's a psychopath, alright. Just a few things: most clinical psychs don't use the PCL-R. It's usually used mostly in a forensic setting, like testing people incarcerated, pre-sentencing psych evals, etc. Many clinicians do use the MCMI or MMPI though and diagnose using the DSM - in the latest version of the DSM, psychopathy is only on the scale of antisocial personality disorder. As such, psychopathy isn't a diagnosis most clinical psychs would use.
There is a ton of debate within the psych community (like decades worth) over psychopathy -> if it's real, if it's the same disorder as antisocial personality, whether sociopathy and psychopathy are interchangeable, etc. It's tough to get a grasp on it when even professionals can't agree.
My two cents is that psychopathy is a real personality disorder in and of itself. Most psychopaths test high for antisocial but not all antisocials test high for psychopathy. If one thinks of cluster B disorders (histrionic, narcissistic, antisocial and borderline) like siblings it helps. You know, there's a family resemblance. The PD's are very similar - there's a slight overlap with all of them (and psychopathy). So, when someone is comorbid (a mix of psych disorders) it can be very difficult to see which 'parent' the eyes or ears come from.
Just as an example: psychopaths, borderlines, and antisocials especially often have difficulty maintaining interpersonal relationships but the reasons why are totally different.
I personally believe Jodi is a blend of narcissistic, antisocial, and borderline....but most importantly and predominately, psychopathic.
JMO and FWIW (Happy to have Mindmatters correct me too since I got my psych degree through the School of Hard Knocks.

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