Evan is a registered psychologist undertaking the clinical registrar program. He obtained his undergraduate and master’s (clinical and health psychology) degrees from the University of Manchester and recently completed a doctoral degree in clinical psychology at Monash University in the area of sleep, chronobiology and circadian rhythms, and mental health.
Evan has worked with people of diverse backgrounds in academic, clinical, and research environments across Greece, United Kingdom, and Australia. This extensive personal and professional experience enables him to help people facing a wide range of difficulties including anxiety and stress disorders, sleep difficulties, adjustment to life-limiting conditions, mood concerns (e.g., depression, bipolar spectrum conditions), grief and bereavement, relationship concerns, and immigration stress.
Evan is committed to ongoing professional development and evidence-based practice to provide effective, safe, non-stigmatising, and compassionate care tailored to each person’s psychological needs. His therapeutic work is built on a person-centred collaborative foundation focused on understanding each person’s unique human experiences, strengths, and current challenges in order to progress towards a more fulfilling day-to-day life.
Evan incorporates therapeutic tools from a range of evidence-based therapies including cognitive behavioural therapy (CBT), motivational interviewing, mindfulness, acceptance and commitment therapy (ACT), dialectical behavioural therapy (DBT), and method of levels (MOL). For individuals experiencing posttraumatic stress, Evan utilises cognitive processing therapy (CPT).
Evan remains active in research and has been involved in several works (with the most recent presented below). He also maintains a strong interest in understanding the way that sleep, developmental trauma, and psychological processes influence mental health throughout a person’s life. Evan is fluent in Greek and is also a member of the Australian Psychological Society and the Disaster Response Network initiative.
- Registered Psychologist with the Australian Health Practitioners Regulation Authority (AHPRA)
- Australian Psychological Society and the Disaster Response Network initiative.
Peer Reviewed Journal Articles
Chachos, E., Shen, L., Yap, Y., Maskevich, S., Stone, E. J., Wiley, J. F., & Bei, B., (2023). Vulnerability to sleep-related affective
disturbances? A closer look at Dysfunctional Beliefs and Attitudes about Sleep as a moderator of daily sleep-affect
associations in young people. Sleep Health, Accepted for Publication (July 2023).
Stone, J. E., Wiley, J., Chachos, E., Hand, A. J., Lu, S., Raniti, M., … & CLASS Study Team. (2022). Protocol: The CLASS Study
(Circadian Light in Adolescence, Sleep and School): protocol for a prospective, longitudinal cohort to assess sleep,
light, circadian timing and academic performance in adolescence. BMJ Open, 12(5).
Hewitt, R. M., Bundy, C., Newi, A. L., Chachos, E., Sommer, R., Kleyn, C. E., … & Blome, C. (2022). How do dermatologists’
personal models inform a patient‐centred approach to management: a qualitative study using the example of
prescribing a new treatment (Apremilast). The British Journal of Dermatology, 187(1), 82-88.
Pattinson, R., Hewitt, R. M., Trialonis-Suthakharan, N., Chachos, E., Courtier, N., Austin, J., … & Bundy, C. (2022).
Development of a conceptual framework for a Patient-Reported Impact of Dermatological Diseases (PRIDD)
measure: a qualitative concept elicitation study. Acta Dermato-Venereologica, 102, adv00823-adv00823.
Stone, J. E., Phillips, A. J., Chachos, E., Hand, A. J., Lu, S., Carskadon, M. A., … & CLASS Study Team. (2021). In‐person vs
home schooling during the COVID‐19 pandemic: Differences in sleep, circadian timing, and mood in early
adolescence. Journal of Pineal Research, 71(2), e12757.
Evangelos Chachos, Lin Shen, Yang Yap, Svetlana Maskevich, Julia E. Stone, Joshua F. Wiley, Bei Bei. The Role of
Dysfunctional Beliefs and Attitudes about Sleep In the Association between Daily Sleep and Affect in Adolescents
and Young Adults. Oral Presentation, Australasian Sleep Association, SleepDownUnder 2021.
Evangelos Chachos, Sinh Lu, Anthony J. Hand, Mary A. Carskadon, Elizabeth B. Klerman, Steven W. Lockley, Joshua F. Wiley,
Andrew J. K. Phillips, Shantha M. W. Rajaratnam, Bei Bei, Julia E. Stone. The association between later circadian
timing and higher depressive symptoms in early adolescence is ameliorated by longer sleep duration. Oral
Presentation, Australasian Sleep Association, SleepDownUnder 2022.
Published Conference Abstracts
Chachos, E., Lu, S., Hand, A., Carskadon, M., Klerman, E., Lockley, S., Wiley, J., Phillips, A., Rajaratnam, S., Bei, B., & Stone, J.
(2022). O019 The Association Between Later Circadians Timing And Higher Depressive Symptoms In Early
Adolescence Is Ameliorated By Longer Sleep Duration. SLEEP Advances, 3(Supplement_1), A17-A17.
Lu, S., Phillips, A., Hand, A., Chachos, E., Carskadon, M., Lockley, S., … & Stone, J. (2022). O041 Pre-bedtime device use
disrupts sleep in early adolescents: differential effects depending on device type and media content. SLEEP
Advances, 3(Supplement_1), A17-A17.
Hand., A., Stone, E. J., Lu, S., Chachos, E., Carskadon, A. M., Lockley, W. S., Wiley, F. J., Bei, B., Klerman, B. E., Rajaratnam, M.
W. S., & Phillips, J. K. A. (2022). O044 The Association Of The Sleep Regularity Index With Subjective Cognitive
Function And Academic Skills In Adolescents. SLEEP Advances, 3(Supplement_1), A17-A17.
Chachos, E., Shen, L., Maskevich, S., Yap, Y., Stone, J., Wiley, J., & Bei, B. (2021). O010 The role of dysfunctional beliefs and
attitudes about sleep in the association between daily sleep and affect in adolescents and emerging adults. SLEEP
Advances, 2(Supplement_1), A5-A5.
Stone, J., Phillips, A., Wiley, J., Chachos, E., Hand, A., Lu, S., … & Rajaratnam, S. (2021). O030 Changes in sleep-wake
patterns, circadian timing, and mood in Australian teens during the COVID-19 pandemic. SLEEP Advances,