| Abbreviation | Definition |
|---|---|
| AHP | Association of Humanistic Psychology |
| AHPD | Association of Heads of Psychology Departments |
| AIDOSE | Awareness, Information, Definition, Options, Selection and Execution. |
| AIM | Assessment of Individual Motivation |
| AIP | Association for Integrative Psychology |
| AIR | Atlantic Institute for Resilience |
| AJP | American Journal of Psychology |
| ALIVE | A Lifestyle Intervention Via Email |
| AMA | American Medical Association |
| AMS | Altered Mental State |
| ANAM | Automated Neuropsychological Assessment Metric |
| ANAM | Automated Neuropsychological Assessment Metrics |
| ANCAP | Alaska Native Community Advancement in Psychology |
| ANDI | Advanced Neuropsychological Diagnostics Infrastructure |
| ANT | Amorphous Nominal Task |
| ANT | Automatic Negative Thoughts |
| APA | American Psychiatric Association |
| APA | American Psychological Association |
| APA | American Psychological Assosiation |
| APA | Asian Psychological Association |