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The Hamilton Anxiety Scale: reliability, validity and sensitivity to change in anxiety and depressive disorders
Abstract
The Hamilton Anxiety Scale (HAM-A) was tested for reliability and validity in two different samples, one sample (n = 97) defined by anxiety disorders, the other sample (n = 101) defined by depressive disorders. The reliability and the concurrent validity of the HAM-A and its subscales proved to be sufficient. Internal validity tested by latent structure analysis was insufficient. The major problems with the HAM-A are that (1) anxiolytic and antidepressant effects cannot be clearly distinguished; (2) the subscale of somatic anxiety is strongly related to somatic side effects. The applicability of the HAM-A in anxiolytic treatment studies is therefore limited. More specific anxiety scales are needed.
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“Each item is scored on a Likert scale ranging from 0 (not present) to 4 (severe).”
In the citing paper
“A total score of <17 indicates mild severity, 18–24 denotes mild to moderate severity, 25–30 indicates moderate to severe, and >30 indicates severe (44).”
In the citing paper
“It consists of 14 items which assess 14 anxiety symptoms.”
In the citing paper
“The HAM-A is an observer-administered instrument to assess the severity of anxiety symptoms.”
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“Maier et al. (1988) tested the scale’s reliability and validity and concluded that the reliability and concurrent validity of the HAM-A and its subscales were sufficient and there is reasonable interrater reliability and good 1 week retest reliability.”
BackgroundJaipurkar, R., Ss, M., Banerjee, C., Bobde, S., & Karade, S. K. (2021) · Journal of Marine Medical Society · doi:10.4103/jmms.jmms_165_20 · Cited by 2
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“The scale has a total score range of 0–56, where <17 indicates mild, 18–24 mild to moderate, and 25–30 moderate to severe.[13,14]”
BackgroundAshmitha, K. A. A., Gopal, C. N. R., Sridhar, O. T. S., & Kancharla, K. (2023) · Annals of Neurosciences · doi:10.1177/09727531231185925 · Cited by 2
Deng, X., Wu, C., Liu, M., Zheng, X., Li, A., Liu, J., Huang, C., & Zhou, J. (2023) · PubMed Central · Cited by 2
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Ai, W.-J., Xu, C., Jian, F., Jiang, C. Q., & Gao, Y. (2023) · Medicine · doi:10.1097/md.0000000000035729 · Cited by 2
“[26,27] The HADM and HAMA are questionnaires developed in 1960 by Hamilton and are designed to assess the symptoms of depression and anxiety, respectively.”
BackgroundMethodCirculating sex hormones in women with severe anxiety during pregnancy
Leff, P., Camacho‐Arroyo, I., Camacho‐Pacheco, R. T., Coronel, F., Cervantes, A. V. G., Aquino, L. E. J., Solares‐Bravo, M., & Flores‐Ramos, M. (2024) · Salud Mental · doi:10.17711/sm.0185-3325.2024.002 · Cited by 2
“Each group of signs/ symptoms is rated on a scale of zero to four, with four being the most severe (i.e., each item measures the frequency and intensity of anxiety symptoms on a 0–4 Likert-type scale) (Hamilton, 1959; Maier et al., 1988).”
InfluentialZhang, X., Cheng, X., Chen, J., Sun, J., Yang, X., Li, W., Chen, L., Mao, Y., Liu, Y., Zeng, X., et al. (2024) · Journal of Affective Disorders · doi:10.1016/j.jad.2024.04.063 · Cited by 2
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Steuber, E. R., Miller, M., & Mcguire, J. F. (2024) · Psychiatric Clinics of North America · doi:10.1016/j.psc.2024.04.009 · Cited by 2
Govindan, S., Mathan, K., Arulmozhi, M., & Priya, P. (2024) · Cureus · doi:10.7759/cureus.61033 · Cited by 2
“It is a psychological rating scale, specifically designed to determine the intensity of anxiety symptoms in adults, adolescents, and children [14].”
BackgroundKundu, P. S., Halder, A., Pal, A. K., Ray, S., & Mondal, S. (2024) · Indian Journal of Psychiatry · doi:10.4103/indianjpsychiatry.indianjpsychiatry_381_24 · Cited by 2
“[21,22] 5.”
Shi, C., Wu, L., Fu, W., Gao, J., Jiang, H., Wang, M., & Chen, X. (2024) · Frontiers in Public Health · doi:10.3389/fpubh.2024.1420299 · Cited by 2
Pan, S., Long, S., Cai, L., Wen, J., Lin, W., & Chen, G. (2024) · Endocrine · doi:10.1007/s12020-024-04087-6 · Cited by 2
“At this visit, the patient ’ s Hamilton Anxiety Scale (HAM-A) [18] and Hamilton Depression Rating Scale (HAM-D) [19] scores were both normal.”
Lempert, K. M., Huber, B. D., Batistuzzo, M. C., Sheshachala, K., Hezel, D. M., de Joode, N. T., Marincowitz, C., Löchner, C., Stein, D. J., Narayanaswamy, J. C., et al. (2024) · Clinical Psychological Science · doi:10.1177/21677026241289927 · Cited by 2
“Thus, here we planned to examine continuous associations between anxiety (measured using the Hamilton Anxiety Inventory; Maier et al., 1988) and discounting within the OCD group and between impulsivity (measured using the Compulsive-Impulsions subscale of the Impulsive-Compulsive Behaviors checklist [ICBC]; Guo et al.…”
Zhou, H., Liu, X., Liu, S., Cao, L., Chai, S., Gao, Y., Liang, K., Tang, M., Zhang, L., Wang, Y., et al. (2025) · Journal of Psychiatric Research · doi:10.1016/j.jpsychires.2025.01.047 · Cited by 2
Ollrogge, K., Schulze, D., Sterzer, P., Köhler, S., Friedel, E., Romanczuk‐Seiferth, N., Siegerist, A.-L., Brakemeier, E., & Guhn, A. (2025) · BMJ Open · doi:10.1136/bmjopen-2024-098466 · Cited by 3
“HAM-A and HAM-D are semistructured interviews with good psychometric qualities 33 34 that measure the severity of all symptom domains of anxiety and depression described by the DSM over the last 7 days.”
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“HAMA included 14 items, and its scoring criteria usually range from 0 (normal) to 4 (severe) [29].”
Zhao, Y., Ge, F., Luo, X. R., Li, J., Zhang, J., Ju, Y., Zhang, J., Wang, Y., Lyu, D., Qiu, Y., et al. (2025) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2025.1450275 · Cited by 2
“The Insomnia Severity Index (ISI), Hamilton Depression Scale (HAMD) and Hamilton Anxiety Scale (HAMA) will be used for screening.”
InfluentialCho, Y. J., Ryu, J. S., Seok, J., Kim, E. J., Oh, J., & Kim, B.-H. (2025) · Psychiatry Investigation · doi:10.30773/pi.2024.0392 · Cited by 2
“…Inventory (STAI) was used to evaluate general negative affect associated with anxiety or depression 54,55 ; the Hamilton Anxiety Rating Scale (HAS) was used to evaluate level of anxiety 56 ; the Perceived Stress Scale (PSS, Korean version Cronbach α=0.819 57 ) to evaluate recent stress levels.”
InfluentialJung, I. C., Kang, D.-H., Choi, S.-Y., Choi, Y., Kwon, O., Kook, H. J., Lee, D., Park, Y., & Kim, J. (2025) · JMIR Research Protocols · doi:10.2196/68166 · Cited by 2
“…group, and the first and eighth weeks for the control group, the following instruments will be administered: Hamilton Anxiety Rating Scale (HAM-A) [20], Beck Anxiety Inventory (BAI) [21], Beck Depression Inventory-II (BDI-II) [22], Patient Health Questionnaire-15 (PHQ-15) [23], World Health…”
Fang, L., Wang, P., Xie, T., Ding, S., Wang, T., Zhang, J., Zhang, A., Zhu, P., & Zhu, D. (2025) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2025.1574864 · Cited by 2
“The depression and anxiety symptoms of depressed patients were assessed using the 24-item Hamilton Depression Scale (HAMD) (51) and Hamilton Anxiety Scale (HAMA) (52).”
InfluentialIslam, N., Rahman, M., & Rahman, M. H. (2018) · International Physical Medicine & Rehabilitation Journal · doi:10.15406/ipmrj.2018.03.00116 · Cited by 2
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“This scale is also useful when assessing the effectiveness of drugs taken in anxiety disorder therapy or the effectiveness of psychotherapy [23].”
BackgroundJain, K., Sinha, S. K., & Verma, A. K. (2017) · International Journal of Research Foundation of Hospital and Healthcare Administration · doi:10.5005/jp-journals-10035-1078 · Cited by 2
Yarnell, E. L. (2018) · Alternative and Complementary Therapies · doi:10.1089/act.2018.29153.eya · Cited by 2
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Willing, M. M. P., Tate, L. L., Spangler, P. T., Benedek, D. M., & Riggs, D. S. (2021) · Military Behavioral Health · doi:10.1080/21635781.2021.2013352 · Cited by 2
“The scale has been found to have adequate psychometric properties (Maier et al., 1988), which were found in the present study as well (Cronbach’s alpha = .79).”
Lourmière, G., Lacroix, A., Girard, M., & Nubukpo, P. (2022) · American Journal of Clinical Hypnosis · doi:10.1080/00029157.2021.1877105 · Cited by 2
“The HAM-A allows the quantitative evaluation of anxiety (Maier et al., 1988).”
Wang, J., Wang, F., Gu, M., Xiao, L., Xu, P., Guo, J., Jiang, S., Liu, Y., Liu, Y., Sun, W., et al. (2022) · Frontiers in Neurology · doi:10.3389/fneur.2021.748473 · Cited by 2
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Maier, W., & Bech, P. (1990) · Springer eBooks · doi:10.1007/978-3-642-75370-1_8 · Cited by 2
Self-citationChan, J. W. Y., Li, S. X., Chau, S. W. H., Chan, N. Y., Zhang, J., & Wing, Y. K. (2022) · Clocks & Sleep · doi:10.3390/clockssleep4030029 · Cited by 2
“A range of clinical outcomes were measured weekly during the intervention, including the 17-HDS [49], Hamilton Anxiety Scale (HAM-A) [51], Hospital Anxiety and Depression Scale (HADS) [52], Insomnia Severity Index (ISI) [53], Beck’s Scale for Suicide Ideation (BSSI) [54], Chalder Fatigue Scale (CFS) [55], and quality…”
MethodAlthumairi, A., AlOtaibi, N., Alumran, A. K., Al-Rayes, S., & Owaidah, A. (2022) · Frontiers in Public Health · doi:10.3389/fpubh.2022.917619 · Cited by 2
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Hemoglobin, ferritin and thyroid profile in women with chronic telogen effluvium
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Balea, A. M., Cruce, R., Schenker, R. A., Ionescu, A. G., Streba, L., Ciurea, A.-M., Ghiluşi, M. C., Pirici, D. N., & Vere, C.-C. (2019) · Europe PMC (PubMed Central) · doi:10.12865/chsj.45.04.02 · Cited by 2
“These experiences relate to the fact that the individual feels that he is losing control over the meaning of life, sees himself incapable of adjusting to the new environment requirements and becomes vulnerable in front of the disease’s uncertainty [18].”
BackgroundDimensions de la dépression : modèles statistiques pour l’évaluation des troubles affectifs
Bech, P. (1988) · Psychiatry and Psychobiology · doi:10.1017/s0767399x00002637 · Cited by 2
Language Models Learn Sentiment and Substance from 11,000 Psychoactive ExperiencesPreprint
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“14 for Hamilton Anxiety Scale [19] or 30 for the Mystical Experience Questionnaire [20] and CAPS-5 [21]).”
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“Average time taken to administer the scale is 20 to 30 minutes [19].”
BackgroundBuilding and Validation of an Acute Event Prediction Model for Severe Mental Disorders
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“The 17-item Hamilton Depression Rating Scale (HAMD-17) and Hamilton Anxiety Scale (HAMA) were used to assess depressive and anxiety symptoms [31, 32].”
Askari, N., Gupta, R., Hussain‐Shamsy, N., Barker, L. C., Champagne, T., Lam, R. W. M., Bishop, K., Pirmohamed, J., Michalowska, M., Shah, V., et al. (2025) · BMC Psychiatry · doi:10.1186/s12888-025-06876-3 · Cited by 1
“This clinician-rated scale, consisting of 14 items, is known for its reliability and validity in populations affected by depression and anxiety [28] Ratings are based on a 5-point scale, resulting in a score range of 0–56.”
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“Each item is scored on a five-point scale ranging from 0 to 4 [29, 30].”
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“HAMA is widely used in clinical practice and research studies, with a Cronbach’s α of 0.86 (Maier et al., 1988).”
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“…and anxiety symptoms was measured using the positive and negative syndrome scale (PANSS), the 24-item Hamilton depression rating scale (HDRS), and the 14-item Hamilton anxiety rating scale (HARS) (Kay, Fiszbein, & Opler, 1987; Maier, Buller, Philipp, & Heuser, 1988; Williams, 1988), respectively.”
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“…anxiety scale (sas) were used to evaluate treatment efficacy. haMa, with its 14 items, is a validated tool for objective anxiety symptom assessment (Maier et al., 1988). sas’s 20 items provide a subjective weekly anxiety measure (David et al., 2020), tracking treatment progress from the patient’s…”
Borze, T. F., Pallag, A., CIOBANU, D. I., Kalman, K., Ciurba, A.-P., Suciu, R. N., Muresan, M. E., & Nistor-Cseppento, C. D. (2025) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph22101553 · Cited by 1
“This is also observed through MCID, which, according to the literature, indicates clinically significant improvements [36,39–41].”
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“27,28 It contains 14 items, divided into mental anxiety and somatic anxiety.”
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“In addition, we also used the Hamilton Anxiety Rating Scale (HAMA), [20] the Self-rating Anxiety Scale (SAS), [21] and the Self-rating Depression Scale (SDS) [22] to further evaluate the psychological status of all patients.”
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“Moreover, the commonly accepted TRD definition often overlooks critical clinical factors, such as psychiatric and somatic comorbidities, which are highly prevalent in TRD populations [83% and 70%, respectively, in a recent study (82)].”
Yan, L. L., Zhou, X., Pang, Q., & Yangxi, M. A. O. (2025) · Aging Clinical and Experimental Research · doi:10.1007/s40520-025-03244-9 · Cited by 1
“HAMA (0–56): Scores ≥ 7 indicate anxiety symptoms, with severity correlating with score level [20].”
Feng, M., He, J., Wen, Q., Yao, J., Zeng, Y., Tan, Y., Li, H., Wang, Y., Wang, G., Dong, L., et al. (2026) · BMC Psychiatry · doi:10.1186/s12888-026-07779-7 · Cited by 2
“Anxiety symptoms were evaluated with the Generalized Anxiety Disorder-7 (GAD-7) [33] and the Hamilton Anxiety Scale (HAMA) [34].”
Bao, C., Zhang, Q., Hu, S., Zou, H., Chen, W., Xia, Y. X., Yan, R., Yao, Z., & Lü, Q. (2026) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-025-02128-3 · Cited by 1
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Accelerated brain aging in prolonged grief disorder of later life: Influence of comorbid depression
Hwang, G., Blair, N.-O. P., Claesges, S. A., Reynolds, C. F., Davatzikos, C. A., & Goveas, J. S. (2026) · Journal of Affective Disorders · doi:10.1016/j.jad.2026.121387 · Cited by 1
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Analysis of factors influencing anxiety and depression disorders among hospitalized patients
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“The Inclusion criteria for patients were as follows: (1) CID group: meet the diagnostic guidelines of the third edition of the International Classification of Sleep Disorders, 3 At the same time, meet the following requirements: ① Duration suffered from insomnia > 6 months; ② 18–60 years old; ③ Receiving education ≥ 9…”
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“Outcome measures for diagnosing anxiety, depression and comorbidities assessed included the 24-item Hamilton Depression Rating Scale (HAMD-24) [28, 29] and the 14-item Hamilton Anxiety Scale (HAMA-14) [30, 31].”
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“Four instruments were used: a Sociodemographic Questionnaire, the World Health Organization Quality of Life-BREF (WHOQOL-BREF) (31), the Hamilton Anxiety Rating Scale (HAMA) (32), and the 17-item Hamilton Depression Rating Scale (HAMD-17) (33), to assess quality of life (QOL), anxiety, and depression in both groups.”
InfluentialAttentional bias to death-related stimuli: Modeling cortical dynamics underlying suicide risk
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“Also, anxiety symptoms did not significantly change, as measured through the Hamilton Anxiety Rating Scale (HAM-A; Maier et al., 1988; Kim et al., 2024).”
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“The HAMA consists of 14 items, with a total score ranging from 0 to 56, which effectively reflects the severity of anxiety symptoms.”
InfluentialHu, J., Xiao, Y., Ma, G., Yao, B., Li, J., An, H., Wang, G., & Chen, Y. (2026) · Applied Psychophysiology and Biofeedback · doi:10.1007/s10484-026-09797-3 · Cited by 1
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“22 BAI is a 21-item self-report questionnaire focusing on the severity of anxiety symptoms, particularly somatic manifestations.”
A study on social factors and magnitude of mental health problem among women with marital disharmony
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Metadata
- Authors
- Maier, W., Buller, R., Philipp, M., & Heuser, I.
- Affiliations
- Johannes Gutenberg University Mainz (DE)
- Corresponding author
- Maier, Wolfgang
- Venue
- Journal of Affective Disorders
- Publisher
- Elsevier BV
- Published
- 1988-01
- Volume
- 14
- Issue
- 1
- Pages
- 61-68
- ISSN
- 0165-0327 (ISSN-L)
- OpenAlex
- W2021803359
- Cited by
- 1,044
- References
- 15
- Citations by year
- 2026: 102 · 2025: 132 · 2024: 122 · 2023: 77 · 2022: 81 · 2021: 73 · 2020: 74 · 2019: 56 · 2018: 47 · 2017: 49 · 2016: 45 · 2015: 29 · 2014: 27 · 2013: 22 · 2012: 12
- FWCI
- 4.75
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Affective Disorders (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Social Sciences › Psychology › Applied Psychology › Psychological Testing and Assessment
- Keywords
- Hamilton Anxiety Rating Scale, anxiety disorders, depressive disorders, psychometric validation, reliability statistics, concurrent validity, internal validity, latent structure analysis, anxiolytic treatment, antidepressant effects, sensitivity to change
- MeSH terms
- Agoraphobia, Alprazolam, Amitriptyline, Anxiety Disorders, Clinical Trials as Topic, Depressive Disorder, Humans, Imipramine, Panic, Psychological Tests, Psychometrics, Random Allocation
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