What Is the Difference Between a Psychologist and a Psychiatrist?

Janine Peckham
Jun 24
4 min read

What is the difference between a psychologist and a psychiatrist? In brief terms, a psychologist provides evidence-based psychological assessments to help you manage psychological concerns, build coping skills, and change unhelpful behaviours. A psychiatrist is a medical doctor who assesses mental health conditions from a medical perspective and can prescribe medication.

Understanding the difference between a psychologist and a psychiatrist is an important first step when you are looking for the right type of professional care. This guide provides a clear, practical overview of what each professional does, helping you make an informed decision.

What Does a Psychologist Do?

A psychologist focuses on psychological assessment, diagnosis, and evidence-based psychological interventions. They help adults understand their thought patterns, behaviours, emotions, and responses. Rather than prescribing medication, a psychologist collaborates with individuals to identify the root causes of distress and help them recover by implementing structured, evidence-based strategies.

This professional support is effective for issues such as anxiety, depression, stress, burnout, trauma, adjustment difficulties, and workplace concerns. A psychologist helps people develop coping skills and work toward meaningful change.

What Does a Psychiatrist Do?

Psychiatrists are medical doctors with specialist training in diagnosing and treating mental health conditions. They assess symptoms from a medical and biological perspective, taking into account physical health and other factors that may affect emotional wellbeing.

Psychiatrists usually manage more complex mental health conditions that may require medication or medical treatment. They also provide ongoing review and support as part of a broader treatment plan.

Understanding the Difference Between Psychologists and Psychiatrists

The main difference between a psychiatrist and a psychologist comes down to their medical training. Psychiatrists complete a medical degree followed by specialist training in psychiatry, which qualifies them as medical doctors.

Psychologists complete extensive university degrees in psychology, followed by supervised clinical practice, but they do not attend medical school. Psychologists focus on psychological assessment and psychotherapy, while psychiatrists can provide medical treatment when needed. Both professions often work together complementarily, and many people see both as part of their treatment plan.

Can a Clinical Psychologist Prescribe Medication?

People often wonder, “Can a clinical psychologist prescribe medication?” In Australia, they cannot. Psychologists are not medical doctors, so prescribing medicines is outside the scope of their practice. Only a medical practitioner, such as a psychiatrist or general practitioner (GP), can prescribe medication for mental health conditions.

However, a psychologist may work alongside a psychiatrist or GP if medication forms part of your broader treatment plan. This ensures that you receive the benefits of both psychological therapy and necessary medical support.

Evidence-Based Approaches Used by Psychologists

Psychologists utilise a range of evidence-based modalities tailored to an individual’s specific needs. These approaches include:

Cognitive Behavioural Therapy (CBT) is used to identify and modify unhelpful thinking patterns and behaviours that contribute to emotional distress. CBT is effective for anxiety and mood-related concerns.
Acceptance and Commitment Therapy (ACT) focuses on increasing psychological flexibility. It encourages individuals to accept difficult thoughts and feelings rather than fighting them, while taking actions aligned with their core values.
Schema Therapy explores long-standing patterns or "schemas" developed early in life. It helps individuals address deep-rooted coping mechanisms that no longer serve them well in adulthood.
Dialectical Behaviour Therapy (DBT) provides practical skills for emotional regulation, distress tolerance, and interpersonal effectiveness. It is beneficial to individuals who experience intense emotional responses.
EMDR (Eye Movement Desensitisation and Reprocessing) is used, where appropriate, to help the brain reprocess traumatic memories, reducing the ongoing emotional impact of distressing past events.

When Might an Adult See a Psychologist?

An adult may benefit from seeing a psychologist when they are experiencing concerns they are struggling to manage on their own. Through evidence-based approaches, psychologists help people understand what is contributing to their difficulties and develop healthier ways of coping, thinking, and responding.

You might seek the support of a psychologist for concerns such as:

Anxiety and persistent worry
Depression and low mood
Stress and workplace burnout
Low confidence or self-esteem
Relationship difficulties
Adjustment to major life changes
Trauma-related concerns
Difficulty managing intrusive thoughts or unhelpful behaviours

When Might an Adult See a Psychiatrist?

An adult might see a psychiatrist when they need assessment, diagnosis, or treatment for a mental health condition that may benefit from medical care.

You may be referred to a psychiatrist if:

The symptoms are severe, complex, or keep returning.
A formal medical psychiatric review is required for a diagnosis.
Medication may need to be introduced, adjusted, or carefully monitored.
A biological or medical perspective is important alongside psychological interventions.
You are referred to a psychiatrist by another health professional.

Understanding the Therapy Experience

The experience of seeing a psychologist differs from that of seeing a psychiatrist, reflecting their different roles. During a psychologist appointment, you will usually spend time talking through your concerns, what is happening in your life, and the goals you want to work toward. The psychologist may also explain how therapy works and what techniques they use. At the end of the session, a psychologist will usually summarise what was discussed and outline the next steps.

A psychiatrist appointment often feels more like a specialist medical consultation. While they may discuss your symptoms, general health, family history, and daily functioning, the appointment may also include a medical assessment and, if needed, a questionnaire or basic physical checks.

Final Takeaway

Knowing the difference between a psychologist and a psychiatrist helps you navigate your options more confidently. At Adelaide Clinical Psychology, we understand that taking the first step can feel challenging, so we are here to guide you every step of the way. Our team of warm and caring psychologists uses evidence-based approaches to support meaningful change and help you achieve your goals.