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APEX-Q

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ADHD Profile & Executive-function Questionnaire

A comprehensive 83+ item self-report instrument measuring ADHD-related difficulties across 10 subscales grouped into 3 clinical domains plus a strength profile. Designed to generate a Brain Profile with domain scores, severity bands, strength mapping, and clinical flags.

Total Items

83+ scored

Subscales

10

Clinical Domains

3 + Strengths

Response Scales

4 types

Domain Architecture

Three clinical domains plus a dedicated strength profile, mapped to 10 subscales.

Domain A

Attention & Activation

Subscales: A1, A2, A3

Domain B

Executive & Regulatory

Subscales: B1, B2, B3

Domain C

Identity & Impact

Subscales: C1, C2

Domain S

Strength Profile

Subscales: S1

Subscale Definitions

Each subscale measures a distinct construct with its own severity bands and clinical interpretation.

A1

Inattention

12 items · Attention & Activation

Attention regulation, focus maintenance, and organisational capacity.

A2

Hyperactivity / Impulsivity

11 items · Attention & Activation

Physical restlessness, verbal impulsivity, and action regulation.

A3

Interest-Based Motivation

8 items · Attention & Activation

How interest and motivation regulate engagement, effort, and performance.

B1

Executive Function Load

8 items · Executive & Regulatory

Planning, initiation, working memory, task-switching, and time management.

B2

Emotional Dysregulation

8 items · Executive & Regulatory

Intensity, speed, and manageability of emotional responses.

B3

Rejection Sensitivity

8 items · Executive & Regulatory

Intensity and impact of responses to rejection, criticism, or perceived disapproval.

C1

Masking & Compensation

8 items · Identity & Impact

Effort invested in hiding difficulties and the strategies used to compensate.

C2

Functional Impact

8 items · Identity & Impact

Impact of ADHD patterns across eight life domains.

S1

Strength Profile

10 items · Strength Profile

Genuine capacities associated with the same neurological architecture.

Brain Profile Domains

Subscale scores are mapped into 12 consumer-friendly Brain Profile domains, each with confidence indicators.

Attention Regulation

Impulse Regulation

Task Initiation

Working Memory

Planning & Organisation

Time Awareness

Emotional Regulation

Interpersonal Sensitivity

Masking & Compensation

Functional Impact

Self-Understanding Journey

Strengths

Sample Items

Representative items from selected subscales. Full item bank available under license.

A1

“I find it hard to stay focused on tasks that are not immediately interesting to me.”

A2

“I interrupt others or blurt things out before they have finished speaking.”

B1

“I struggle to start tasks even when I know they are important.”

B2

“My emotions can shift very quickly and feel overwhelming.”

S1

“When something captures my interest, I can focus intensely and produce outstanding work.”

Response Scales

The APEX-Q uses four distinct response scales matched to subscale construct type.

Frequency

Never → Almost Always

Used by: A1, A2, A3, B1, B2, C1

Intensity

Not at all → Extremely

Used by: B3

Impact

No Impact → Severe Impact

Used by: C2

Strength

Not at all like me → Very much like me

Used by: S1

Outputs

Brain Profile

12-domain visual profile with severity bands and confidence indicators.

Domain Scores

Raw and percentage scores for all 10 subscales across 3 domains.

Clinical Flags

Automated flags for clinically significant patterns requiring attention.

Strength Mapping

10 strength dimensions mapped from S1 items with endorsement levels.

PDF Report

Comprehensive clinical-grade report with all scores, interpretations, and flags.

Severity Bands

Per-subscale severity classification: Minimal, Mild, Moderate, Significant, Severe.

Use the APEX-Q

Free for clinical and research use. Contact us for licensing details or collaboration opportunities.