Handwriting analysis that is based on American Trait Theory, is a researched system of detecting, identifying, analyzing personality and character traits of a writer at the time the writing/printing was penned, through the presented written/printed individual letter and stroke structure. Handwriting is brain writing. To be fair, accurate and professional, we would need many samples of handwriting penned over a period of time. Handwriting analysis has been determined to be eighty-seven percent accurate and is highly successful as a diagnostic tool.
On a therapeutic level, handwriting analysis is used for marriage and personal compatibility, juvenile analysis, self-assessment, family assessment, employee/employer potential and jury selection.
A common misconception professional handwriting expert's encounter is being perceived as palm readers and fortune tellers. We cannot predict the future nor give medical evaluations based on a person's handwriting. A medical evaluation made based on a person's handwriting is extremely unprofessional, damaging and also illegal, breaking two laws within the Commonwealth of Massachusetts and in many other States within the United States of America. At this time there has been no scientific evidence presented to substantiate that medical evaluation can be made from a sample of a person's handwriting.
- Handwriting analysis has been determined to be highly accurate and successfully used as a diagnostic tool.
- The Library of Congress has categorized handwriting analysis as a subtopic of psychology (and psychology as an independent discipline rather than as a subtopic of social science).
- Handwriting analysis is a diagnostic tool recognized by the Equal Employment Opportunity Commission as unbiased and non-discriminatory in its findings. Handwriting analysis does not detect race, age, gender or creed.
- Handwriting analysis is used worldwide for marriage & personality compatibility; juvenile analysis; personality improvement; family assessment; self-assessment; employer/employee potential and delinquent and poor student assessment.
- In United States v. Mara, 410 U.S. 19, 41 LW 4185 (1973), the Supreme Court held that the Fourth Amendment is not violated by a compelled production of "physical characteristics" that are constantly exposed to the public. The court stated: "Handwriting, like speech, is repeatedly shown to the public and there is no more expectation of privacy in the physical characteristics of a person's script than there is in the tone of his voice."
- In United States v. Dionisio, 410 U.S. 1, 41 LW 4`80 (1973), The Supreme Court held that the physical characteristics of a person's voice or handwriting, of facial characteristics, being constantly exposed to the public view, are not within the protection of the Fourth Amendment.