Adults 18+

ADULT Assessments

Structured assessments for ADHD, autism, combined presentations, and cognitive functioning. Evidence-based tools, a transparent process, and a written report at the end.

Book Phase 1 →

If your primary goal is exploring medication, the most direct pathway is a referral from your GP to a psychiatrist — Ella does not prescribe medication. Not all psychiatrists require a psychological assessment before an appointment, though some may refer you to a psychologist as part of their process.

Where everything begins

PHASE 1 Intake & Formulation

Phase 1 is required for all adult assessments. It’s an investigative process — Ella examines all possible explanations for your difficulties before recommending a specific pathway.

Phase 1 does not commit you to a full diagnostic assessment. It’s the process of figuring out what the right pathway actually is.

At the end of Phase 1, you may receive

—A recommendation to proceed to formal assessment (Part 2)
—A clinical formulation letter for your GP, psychiatrist, or treating professional
—A treatment plan to address identified difficulties
—A referral to another appropriate professional

Phase 1 Fees

Initial intake session (90 min)$405
Additional session/s as required (60 min each)$270 per session
Document review$150
Questionnaire administration and review$60
Clinical formulation letter (if not proceeding to Part 2)$250

Phase 1 fees are itemised and billed as each item is completed. You will always be informed before any additional appointments are booked or charged.

Formal assessment

PART 2 Assessment Options

All Part 2 fees are fixed and quoted in full before any assessment begins.

Adult ADHD

ADHD
Assessment

$1,700

Fixed fee — quoted after Phase 1

Includes

—DIVA-5 structured ADHD interview
—Standardised questionnaires (you and a person who knows you well)
—Comprehensive diagnostic report with treatment recommendations
—Feedback session (30 min)

Adult ASD

AUTISM
Assessment

$2,400

Fixed fee — ADI-R included — quoted after Phase 1

Includes

—ADOS-2 autism observation assessment
—ADI-R parent or caregiver interview (included — no additional charge)
—All relevant questionnaires
—Comprehensive diagnostic report
—Supervisor review and co-signature (required under national guidelines)
—Feedback session (30 min)

Adult Combined

COMBINED
ASD + ADHD

$3,600

Fixed fee — ADI-R included — quoted after Phase 1

Includes

—ADOS-2 autism observation assessment
—ADI-R parent or caregiver interview (included — no additional charge)
—DIVA-5 ADHD diagnostic interview
—Standardised ADHD and ASD questionnaires
—Integrated dual-diagnosis report (ASD and ADHD)
—Supervisor review and co-signature (required)
—Feedback session (30 min)

Adult Cognitive

COGNITIVE
Assessment

$1,600

Fixed fee — quoted after Phase 1

Includes

—Comprehensive cognitive assessment (WAIS-IV or equivalent)
—Adaptive functioning measures
—Written report
—Feedback session (30 min)

Supervisor review not required. Always requires Phase 1 — not available as standalone.

Not sure about a full assessment?

TREATMENT Plan

Some people complete Phase 1 and decide a formal diagnostic report isn’t what they need. That’s a valid outcome.

If there’s enough clinical clarity — or if you simply want to understand what’s been identified and build a practical plan around it — Ella can work with you to develop a written treatment plan you can share with your GP, treating psychologist, or other allied health professionals.

This isn’t a diagnosis. It’s a document that maps out your identified difficulties and practical strategies.

Treatment Plan Fees

Additional sessions as required (60 min) $270 per session
Written treatment plan document $400

Ella will advise at the end of Phase 1 how many additional sessions are needed. Always follows Phase 1 — not available as a standalone service.

Get started

START WITH Phase 1.

No referral required. Phase 1 is the starting point — from there, you’ll have a clear recommendation and a fixed fee before any formal assessment begins.

Book Phase 1 →