Dr Crystal McMullen

Director/Clinical Psychologist

BA (Psych, Hons I), BBusMan, DPsych (Clin), MAPS

We are a small team of Psychologists and Clinical Psychologists experienced in work with children and families. We offer Assessment and Treatment of a range of presenting concerns, and aim to provide support and understanding not only to the child, but to the whole family.

Meet Our Team

Dr Crystal McMullen is the director of All for Kids Therapy, and is a fully qualified Doctor of Clinical Psychology. Crystal has substantial experience in the assessment and treatment of children and adolescents, as well as working closely with the parents and families of these children. Crystal has worked extensively with children and families within government and non-government agencies, including community clinics, child and youth mental health services, hospitals, and private practice. Crystal has a passion for supporting the emotional and psychological wellbeing of children and their families, and provides assessment and treatment of many issues, but in particular, focussing on:

• Anxiety

• Behaviour Problems
• Cognitive and Learning Assessments (including Dyslexia)
• Parenting Support

• Low self-esteem

Crystal utilises a number of empirically validated treatments in her work including:

• Cognitive Behavioural Therapy
• Play Therapy
• Interpersonal Therapy
• Schema Therapy
• Attachment-based Treatment
• Triple P
• Family therapy
• Strengths-based Therapy
• Narrative Therapy
• Brief Solution-Focused Therapy
• Sandplay Therapy


• Registration with Psychology Board of Australia
• Endorsement as a Clinical Psychologist with Psychology Board of Australia
• Full Membership with Australia Psychological Society

Research and Academic Achievements

Crystal has also been involved in research investigating the risk factors and treatment of childhood anxiety. Crystal completed her Doctor of Clinical Psychology degree at the University of Queensland and focused her research on this area. Crystal is fully registered as a Clinical Psychologist with the Psychology Board of Australia, she currently spends most of her time working in private practice, but has also worked as a Lecturer and Course Coordinator at the University of Queensland and University of Southern Queensland, teaching and managing Undergraduate and Postgraduate Psychology courses. Crystal has been awarded numerous Dean’s Commendations for Outstanding Achievement in the area of Psychology, as well as Awards for Excellence in Teaching.

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Emma-Leigh Senyard

Registered Psychologist/Clinical Psychology Registrar

MProfPsych, MClinPsych, BSc(Hons)

Emma-Leigh Senyard is a registered psychologist who is passionate about child and adolescent psychology, and working with families to optimise treatment outcomes. 

Emma-Leigh has experience working with children through to older adults, in a number of settings including community clinics, private practice and occupational rehabilitation, where she has developed a wide array of skills treating a variety of psychological issues. Emma-Leigh is particularly passionate about the assessment and intervention of:

  • Behaviour problems

  • Anxiety

  • Depression

  • ASD

  • ADHD

  • Social skills 

  • Coping strategies 

  • Emotion regulation

Emma-Leigh has extensive experience as a group facilitator and trainer, and has conducted group mental health training and treatment in communities, workplaces and private practice. 

Emma-Leigh completed a Master of Professional Psychology at the University of Southern Queensland, and is currently completing her Master in Clinical Psychology at Charles Sturt University. Her research interests include utilising e-therapy to deliver child and adolescent intervention programs. Emma-Leigh is also an accredited provider of Triple P Positive Parenting Program.


  • Full Registration with the Psychology Board of Australia

  • Member of the Australian Psychological Society 

  • Member of the Golden Key Society for Outstanding Academic Achievement

Emma-Leigh emphasises the importance of rapport with children and families, to motivate children to fully participate and engage in session. Emma-Leigh utilises a variety of evidence based interventions including Cognitive Behavioural Therapy, Play Therapy, Triple P, Family Therapy and Acceptance Commitment Therapy

Ellen McDonald

Registered Psychologist

MProfPsych, BPsych(Hons)

Ellen McDonald is a Generally Registered Psychologist. Ellen completed her Masters in Professional Psychology at the University of Southern Queensland. Ellen has worked with children and their families in educational settings for over 9 years.  Ellen has substantial experience working with and supporting children who have learning or attention difficulties, are on the Autism Spectrum and those with physical disabilities, to reach their best potential in terms of academic, social and emotional outcomes. Ellen is especially passionate about working with children and their families to promote emotional and psychological wellbeing. Ellen provides assessment and treatment of many problems, focussing especially on: 






Emotion Regulation 

Coping Strategies


Behavioural Problems


Ellen also has experience in administering, interpreting and providing feedback for both cognitive and academic assessments. Ellen maintains a strong focus in her practice on developing a rapport, and dedicating time to collaboratively establishing goals with her clients to ensure they feel supported, and that her approach is individually tailored to each client, during their journey to better mental health

Kelsey Erdelyi

Registered Psychologist/Clinical Psychology Registrar

BPsychSc; MPsych(Clin)

Kelsey is a registered psychologist and clinical psychology registrar. She enjoys working with children and adolescents from a variety of cultural and linguistic backgrounds, and has worked alongside individuals experiencing a range of psychological challenges. 


Kelsey has worked with children and families in community mental health, inpatient settings, private practice, and supported children and families engaged with foster and kinship care services. She has particular interests in:


  • Child Protection

  • Attachment 

  • Parenting Support 

  • Emotion Regulation 

  • Behavioural Difficulties 

  • Anxiety

  • Depression

  • Anger Management

  • Stress Management


Kelsey works from a Cognitive Behavioural Therapy (CBT) approach, incorporating other frameworks including Systems and Attachment, play therapy, and Acceptance and Commitment Therapy (ACT). Kelsey also has experience administering a variety of psychological assessments for individuals across the lifespan, and is passionate about holistic and comprehensive assessment to support individuals to achieve their full potential.



  • Australian Psychological Society

  • Registration as a General Psychologist and Clinical Psychology Registrar with the Australian Health Practitioners Regulation Agency