From confusion to clarity


A specialist Psychological Practice

Codner Psychological Associates is a Northamptonshire based specialist Independent Clinical Psychology service for the assessment and diagnosis of  adult Asperger's Syndrome and Attention Deficit Hyperactivity Disorder (ADHD).  

Dr Jason Codner in Northampton


Welcome to the private practice website of Dr Jason Codner, Clinical and Registered Psychologist. I am the Founder and Director of Codner Psychological Associates which provides psychological assessment in Northamptonshire and surrounding areas. My aim is to help you find clarity and understanding from the distress and confusion that has been an obstacle and barrier to you uncovering and developing your true potential. Using a psychological assessment, I can help. Feel free to explore the site to learn a bit more about me and how I can help you. If you are ready to make an appointment or just have questions please click the button below to contact me so that we can begin your journey to a better you.


Patient Promise

My goal is to help you grow from the struggles, heal from your pain, and forward to where you want to be in your life.

I also promise:

  • Up to 20 minutes free telephone consultation
  • A prompt response to phone calls
  • Confidential, compassionate and safe space
  • Total transparency of the cost

Dr Jason Codner

Portrait of Jason Codner in Northampton

About Me


I am a Chartered and registered Clinical Psychologist who will tailor my therapeutic approach to your needs, working alongside you to help you work towards improving your quality of life and achieve your therapy goals.  I have been working in the field of psychology for over 10 years. I specialise in assessment and diagnosis for the neurodevelopment conditions Attention Deficit Hyperactivity Disorder (ADHD) and Autistic Spectrum Conditions (ASC) in older adolescents (16+) and adults. 

I am always more than happy to discuss your care or treatment needs in advance of booking an appointment. If you are thinking about making an appointment for an initial consultation, you are welcome to contact me with any questions you may have with no obligation to commit to therapy.


I am registered with the Health and Care Professionals Council (HCPC) and my pin number is PYL3982. I am a Chartered member of the British Psychological Society (BPS) as well as a member of the Division of Clinical Psychology. I have previously worked in the education and banking sectors before my current role working in the NHS.


Website FAQ

How long will I need to see you for? 

This depends upon the problem you are seeking help for. The National Institute for Health and Clinical Excellence (NICE) publish recommendations regarding duration of therapy or number of sessions for different kinds of mental health difficulties; these can be viewed at Whilst this information can offer a useful guide, there is no ‘one size fits all’ approach, and you may need or want a lower or higher number of sessions. This can only really be agreed in a meaningful way after attending an assessment.  

How long are sessions? 

Sessions are usually 50 minutes. 

When can I come? 

Due to prior commitments I am only able to offers sessions during weekday evenings (from 6pm) and some Saturday mornings (9am -12pm) if needed. You may initially want to attend weekly sessions, at the same time each week, and this will usually be possible. If your other commitments make it difficult for you to attend in this way, and you prefer to attend less frequently, or at different times each week, this may be possible please ask.

Where do sessions take place? 

I currently use a consulting room at Albion Consultancy, in Derngate Northampton. There is on-street pay and display parking available a short distance away as well as several multi storey car parks with 2 hours free parking. Various bus routes pass by on either side of the main road and the train station is within a 20 minute walking distance (Northampton station).

What happens if I cannot come to an appointment I’ve booked? 

Cancellations made more than 48 hours before the appointment will not be charged. Cancellations made with less than 48 hours’ notice will incur the usual session charge.

What are the rules about confidentiality? 

I usually provide a brief summary to your GP and/or referrer about the work undertaken. This, however can usually only happen with your consent, so if you prefer that no information is shared this is usually fine. The only exception to this is if you disclose information which could imply that you, or someone close to you, is at risk; in this eventuality, I have a professional and legal responsibility to share this information. Efforts would always be made to discuss this with you prior to liaison with other agencies. 

What can I do if I’m unhappy about any aspect of my psychological work?

Firstly, please feel free to discuss this with me as I am always interested to hear honest feedback and adapt my work accordingly. If this doesn’t resolve matters, you can contact the HCPC at

When would it not be appropriate to work with me? 

I am not able to offer a crisis service, so if you are unable to keep yourself safe between sessions and/or are regularly engaging in very risky self-harming behaviours, it would usually be recommended that you seek input from your local NHS service. Please discuss this with me if you’re unsure whether it is relevant for you.


In the case of life threatening emergencies please dial 999 and for non life threatening, but urgent help dial 111. For more information about accessing help for mental health emergencies please click here

World wide crisis link

If you are accessing this site outside the UK, and you are in an immediate crisis, please call 911 in the US and Canada, 112 in Europe. 

Alternatively, you can visit Befrienders Worldwide to find a suicide helpline for your country.

Getting STARTED - What you need to know

Adult Asperger's Syndrome Assessment

Adult Asperger's Syndrome Assessment

Adult Asperger's Syndrome Assessment

Once the initial screening appointment has indicated that at full assessment is warranted, as a first step I usually ask the person to complete some questionnaires.  Then meet with the person to conduct a semi structured interview and if required conduct formal observations. Where possible an interview with the client’s informant (usually a parent) would take place as well as a review of any documentation such as previous school reports, medical, educational or psychological assessments, work evaluations or other descriptions the person may have that could shed light on the question of Asperger’s. A full assessment takes no less than 3 hours (often more as time for analysis of results is often needed).  You will receive a full report with details of the assessment and confirmation of the diagnosis. This should constitute medical evidence where it might be required. 


Adult ADHD assessment

Adult Asperger's Syndrome Assessment

Adult Asperger's Syndrome Assessment


Once the initial screening appointment has indicated that at full assessment is warranted, as a first step I usually ask the person to complete some questionnaires as well as someone who knew them as a child (usually a parent). I then conduct a semi structured interview using a standardised and well researched tool namely the Brown’s ADD scales. A number of attention tasks using a psychometric test would then be conducted. While a full assessment takes no less than 2 hours (often more), it is usually possible to determine whether or not a client has ADHD on the day of an assessment. You will receive a full report with details of the assessment and confirmation of the diagnosis. This should constitute medical evidence where it might be required.

Psychological Therapy Sessions

Psychological Therapy Sessions

Psychological Therapy Sessions

Therapy is an individual endeavour and therefore I attempt to be as flexible as possible to meet your individual needs. There is no minimum or maximum number of sessions that people can be seen for. Most therapies range from 8-12 sessions, however sometimes up to 20 sessions or more are required. Brief contracts (1-4 sessions) are offered if a psychological assessment and understanding are all that is required. Typically, sessions are on an individual basis, however, there may be occasions where it would be helpful to be joined by a partner, family member or carer either for some, or all, of the sessions. Sessions tend to be 50 minutes. Due to my other commitments appointment times are available evenings (6pm - 9pm) and occasionally on Saturday if needed. Therapy sessions generally occur weekly or fortnightly.


Psychological Therapy Sessions

Psychological Therapy Sessions



· Initial diagnostic screening assessment (fixed fee) approximately 60 minutes - £150

· Cognitive assessment - £500

· ADHD – Full Assessment - £1000

· Asperger’s Syndrome assessment - £1800

Areas of expertise - More about me


Children, Adolescents and Adults

Children, Adolescents and Adults

Children, Adolescents and Adults

I have previous experience of working with children and adolescents who were experiencing a range of psychological difficulties, as well specialist knowledge and experience of assessing and working with adult Asperger’s Syndrome, High-functioning Autism and ADHD.

Library books


Children, Adolescents and Adults

Children, Adolescents and Adults

Comprehensive Behavioral Interventions (CBITS- Tourettes), 2019

 Mental Health First Aid trained 2019

Supervision in Applied Psychological Practice , 2018

Autism Diagnostic Observation Schedule (ADOS-2) , 2017

Diagnostic Interview for Social and Communication Disorders (DISCO), 2016

Doctorate in Clinical Psychology, Teesside University, 2016

Dipolma in Primary Care Mental Health 2009
Bachelor of Science (Hons) Information Technology and Psychology, Liverpool Hope University, 1998 



Children, Adolescents and Adults


Chartered Member of the British Psychological Society
Full Member of the Division of Clinical Psychology
Registered with Health & Care Professions Council (HCPC) 

Dr Jason Codner’s BOOK HAVEN

Resources for refuge knowledge inspiration and wellbeing

Resources for refuge knowledge inspiration and wellbeing

Resources for refuge knowledge inspiration and wellbeing

Dr Jason Codner’s Book Haven

The following resources have been recommended by Psychologists and health care providers as well as patients. They are excellent books to help improve various mental mental related difficulties and I feel comfortable in personally recommend each and everyone, as several I have used with clients and have had good feedback.

*Please note that in the interest of transparency this list includes affiliate links. This means that I receive a small commission off the sales of these books if you use these links. This does not cost you any extra but goes towards helping me provide more free and valuable content.

The Complete guide to Asperger’s Syndrome

Resources for refuge knowledge inspiration and wellbeing

Resources for refuge knowledge inspiration and wellbeing

"The Complete Guide to Asperger's Syndrome" is the definitive handbook for anyone affected by Asperger's syndrome (AS). This is the go to handbook for the newly diagnosed with adult Autism,and anyone else interested in Asperger's Syndrome. While the first edition  was first published over a decade ago (1998), this updated edition includes an introduction the DSM 5 diagnostic criteria as well as a frequently asked question section and resources for anyone wanting to know more as a specific aspect of Asperger's Syndrome. Giving the "textbook" look and feel I often suggest you pick a particular chapter relevant to what you are looking for, rather than reading cover to cover.

Driven to Distraction

Resources for refuge knowledge inspiration and wellbeing

Asperger's Syndrome: A guide for parents and Professionals

Driven to distract

Dr Hallowell is an well respected Psychiatrist, author, International Speaker and Director of the Hallowell Clinic in New York.  He  was also diagnosed with ADHD as a adult. Dr Hallowell has a written  an invaluable guide to the causes, symptoms and treatment of ADHD through the use of case histories. 

Asperger's Syndrome: A guide for parents and Professionals

Asperger's Syndrome: A guide for parents and Professionals

Asperger's Syndrome: A guide for parents and Professionals

Northampton Autism assessment book

A very helpful and short guide for parents and professionals that has chapters on diagnosis, social behaviour, language and interest and routine, motor clumsinsess, cognition and a frequently asked question section. All in all very informative and helpful book by the world famous Professor Tony Attwood.

The CBT Handbook

Asperger's Syndrome: A guide for parents and Professionals

The CBT Handbook

Dr Jason Codner’s Book Haven The CBT handbbook

Accessible yet authoritative CBT self-help guide for the effective treatment of common emotional problems, including depression, anger, anxiety, self-esteem and stress. Another big book but again only pick the bits helpful to you. It comes with a wealth of resources, strategies and several questionMarie’s to help you manage your difficulties effectively. One of the books on prescription choices from the The Reading Agency.

Mind over Mood

Asperger's Syndrome: A guide for parents and Professionals

The CBT Handbook

Dr Jason Codner’s book haven mind over mood

A very helpful Cognitive Behaviour Therapy (CBT) work book that you can use without the need of a clinician. Full over examples, strategies and techniques to help you overcome emotional distress. Another key text from the Books on Prescription schem.

NeuroTribes: The Legacy of Autism and How to think smarter about people who think differently

NeuroTribes: The Legacy of Autism and How to think smarter about people who think differently

NeuroTribes: The Legacy of Autism and How to think smarter about people who think differently



A big book (544 pages) but a Sunday Times best seller providing a history and development of the Autism and Asperger’s Syndrome  diagnosis and interventions through case studies of individuals who have received these diagnosis (or the early incarnations). Highly recommended.

My Blog

I strive to provide comprehensive care for my clients and I hope this blog helps provide information for individuals, parents, and families to find some of the answers to common questions and concerns. My blog's aim is to offer not just information that gives an overview of what I and others in the field of psychology do, but hopefully to provide resources. If you have any specific questions or topics you would like me to discuss please contact me and I would be happy to answer your queries.

Want to start? Please call (01604) 300181 or e-mail me

What would you like to say?

Contact Codner Psychological Associates

What would you like to say?

Codner Psychological Associates

24 Albion Place, Northampton, Northampton, Northamptonshire, England NN1 1UG, United Kingdom

(01604) 300181 or E-mail me using the contact form


Tue, Wed, Thur: 6pm - 9pm

Sat: 9am-12pm

Sun: Closed



Be the first to get new content and the latest information on offers from the practice.

Privacy Policy


Privacy Notice

This is the privacy notice of Codner Psychological Associates. In this document, "we", "our", or "us" refer Codner Psychological Associates

Our registered office is at Kemp House 160 City Road, London, EC1V 2NX.

Our company number is 108953801 and is registered in England and Wales.


1. This is a notice to inform you of our policy about all information that we record about you. It sets out the conditions under which we may process any information that we collect from you, or that you provide to us. It covers information that could identify you (“personal information”) and information that could not. In the context of the law and this notice, “process” means collect, store, transfer, use or otherwise act on information.

2. We regret that if there are one or more points below with which you are not happy, your only recourse is to leave our website immediately.

3. We take seriously the protection of your privacy and confidentiality. We understand that all our clients and visitors to our website are entitled to know that their personal data will not be used for any purpose unintended by them, and will not accidentally fall into the hands of a third party.

4. We undertake to preserve the confidentiality of all information you provide to us, and hope that you reciprocate.

5. Our policy complies with UK law accordingly implemented, including that required by the EU General Data Protection Regulation (GDPR).

6. The law requires us to tell you about your rights and our obligations to you in regards to the processing and control of your personal data. We do this now, by requesting that you read the information provided at

7. Except as set out below, we do not share, or sell, or disclose to a third party, any information collected through our website.

The bases on which we process information about you

The law requires us to determine under which of six defined bases we process different categories of your personal information, and to notify you of the basis for each category.

If a basis on which we process your personal information is no longer relevant then we shall immediately stop processing your data.

If the basis changes then if required by law we shall notify you of the change and of any new basis under which we have determined that we can continue to process your information.

1. Information we process because we have a contract with you

When you become our client, a contract is formed between you and us.

The service we provide to you as a client necessarily entails you providing us with personal information.

We process this information on the basis there is a contract between us, or that you have requested we use the information before we enter into a legal contract.

Additionally, we may aggregate this information generally use it to provide class information, for example to monitor the performance of a particular service we provide. If we use it for this purpose, you as an individual will not be personally identifiable.

We shall continue to process this information until the contract between us ends or is terminated by either party under the terms of the contract.

2. Information we process with your consent

Through certain actions when otherwise there is no contractual relationship between us, such as when you browse our website or ask us to provide you more information about our services, you provide your consent to us to process information that may be personal information.

Wherever possible, we aim to obtain your explicit consent to process this information.

Sometimes you might give your consent implicitly, such as when you write to us requesting a response.

Except where you have consented to our use of your information for a specific purpose, we do not use your information in any way that would identify you personally. We may aggregate it in a general way and use it to provide class information.

If you have given us explicit permission to do so, we may from time to time pass your name and contact information to selected associates whom we consider may provide services or products you would find useful.

We continue to process your information on this basis until you withdraw your consent or it can be reasonably assumed that your consent no longer exists.

You may withdraw your consent at any time by writing to us at our clinic rooms or by e-mail at If you do so, we shall not be able to provide our services further.

3. Information we process for the purposes of legitimate interests

We may process information on the basis there is a legitimate interest, either to you or to us, of doing so.

Where we process your information on this basis, we do after having given careful consideration to:

· whether we could achieve the same objective by other means

· whether processing (or not processing) might cause you harm

· whether you would expect us to process your data, and whether you would, in the round, consider it reasonable to do so

For example, we may process your data on this basis for the purposes of:

· record-keeping for the proper and necessary administration of our business

· protecting and asserting your rights, our rights, or the rights of any other third party

· insuring against or obtaining professional advice that is required to manage business risk

· protecting your interests where we believe we have a duty to do so.

4. Information we process because we have a legal obligation

We are subject to the law like everyone else. Sometimes, we must process your information in order to comply with a statutory obligation.

For example, we may be required to give information to legal authorities if they so request or if they have the proper authorisation such as a search warrant or court order.

This may include your personal information.

Specific uses of information you provide to us

5. Information relating to your method of payment

Your debit or credit card number and other payment information is never taken by us or transferred to us either through our website or otherwise. Our employees and contractors never have access to it.

6. Job application and employment

If you send us information in connection with a job application, we may keep it for up to three years in case we decide to contact you at a later date.

If we employ you, we collect information about you and your work from time to time throughout the period of your employment. This information will be used only for purposes directly relevant to your employment. After your employment has ended, we will keep your file for six years before destroying or deleting it.

7. Contacting us

When you contact us, whether by telephone, by post, through our website or by e-mail, we collect the data you have given to us in order to reply with the information you need.

We record your request and our reply in order to increase the efficiency of our business.

We may keep personally identifiable information associated with your message, such as your name and email address so as to be able to track our communications with you to provide a high quality service.

8. Complaining

When we receive a complaint, we record all the information you have given to us.

We use that information to resolve your complaint.

If your complaint reasonably requires us to contact some other person, we may decide to give to that other person some of the information contained in your complaint. We do this as infrequently as possible, but it is a matter for our sole discretion as to whether we do give information, and if we do, what that information is.

We may also compile statistics showing information obtained from this source to assess the level of service we provide, but not in a way that could identify you or any other person.

If you complain about any of the content on our website or in any brochure, we shall investigate your complaint. If we feel it is justified or if we believe the law requires us to do so, we shall remove the content while we investigate.

If we think your complaint is vexatious or without any basis, we shall not correspond with you about it.

Use of information we collect through automated systems when you visit our website

9. Cookies

Cookies are small text files that are placed on your computer's hard drive by your web browser when you visit any website. They allow information gathered on one web page to be stored until it is needed for use on another, allowing a website to provide you with a personalised experience and the website owner with statistics about how you use the website so that it can be improved.

Some cookies may last for a defined period of time, such as one day or until you close your browser. Others last indefinitely.

Your web browser should allow you to delete any you choose. It also should allow you to prevent or limit their use.

Our website uses cookies. They are placed by software that operates on our servers, and by software operated by third parties whose services we use.

When you first visit our website, we ask you whether you wish us to use cookies. If you choose not to accept them, we shall not use them for your visit except to record that you have not consented to their use for any other purpose.

If you choose not to use cookies or you prevent their use through your browser settings, you will not be able to use all the functionality of our website.

We use cookies in the following ways:

9.1. to track how you use our website

9.2. to record whether you have seen specific messages we display on our website

9.3. to keep you signed in our site

9.4. to record your answers to surveys and questionnaires on our site while you complete them

9.5. to record the conversation thread during a live chat with our support team.

10. Personal identifiers from your browsing activity

Requests by your web browser to our servers for web pages and other content on our website are recorded.

We record information such as your geographical location, your Internet service provider and your IP address. We also record information about the software you are using to browse our website, such as the type of computer or device and the screen resolution.

We use this information in aggregate to assess the popularity of the webpages on our website and how we perform in providing content to you.

If combined with other information we know about you from previous visits, the data possibly could be used to identify you personally, even if you are not signed in to our website. 

Disclosure and sharing of your information

11. Information we obtain from third parties

Although we do not disclose your personal information to any third party (except as set out in this notice), we sometimes receive data that is indirectly made up from your personal information from third parties whose services we use.

No such information is personally identifiable to you.

12. Credit reference

To assist in combating fraud, we share information with credit reference agencies, so far as it relates to clients or customers who instruct their credit card issuer to cancel payment to us without having first provided an acceptable reason to us and given us the opportunity to refund their money.

Access to your own information

13. Access to your personal information

13.1. At any time you may review or update or request that we remove personally identifiable information that we hold about you. To obtain a copy of any information that is not provided on our website you may send us a request at

13.2. After receiving the request, we will tell you when we expect to provide you with the information, and whether we require any fee for providing it to you.

13.3. When we receive any request to access, edit or delete personal identifiable information we shall first take reasonable steps to verify your identity before granting you access or otherwise taking any action. This is important to safeguard your information.

Other matters

14. How you can complain about our privacy policy

14.1. If you are not happy with our privacy policy or if you have any complaint with respect to how we process your personal information then you should tell us by email. Our address is

14.2. If a dispute is not settled then we hope you will agree to attempt to resolve it by engaging in good faith with us in a process of mediation or arbitration. 

14.3. If you are in any way dissatisfied about how we process your personal information, you have a right to lodge a complaint with the Information Commissioner's Office. This can be done at

15. Retention period for personal data

Except as otherwise mentioned in this privacy notice, we keep your personal information only for as long as required by us:

15.1. to provide you with the services you have requested;

15.2. to comply with other law, including for the period demanded by our tax authorities;

15.3. to support a claim or defence in court. 

16. Compliance with the law

Our privacy policy has been compiled so as to comply with the laws of the legal jurisdictions in the UK and the European Union. If you think it fails to satisfy any of these laws, we should like to hear from you.

17. Review of this privacy policy

We may update this privacy notice from time to time as necessary. The terms that apply to you are those posted here on our website on the day you use our website. We advise you to print a copy for your records. 

If you have any question regarding our privacy policy, please contact us.