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Welcome to the Member-site of the VNOP

This is the place for membership renewal, and for registration and submission for conferences of the Vereniging Nederlandse Ontwikkelings Psychologie.

This sub-site was launched together with the new main site June 21, 2020 to provide the VNOP community with better membership information.

On this sub-site members and friends can, after login, find several registration forms with online payment options, and an overview of their registrations and payments.

Account registration

Account registration is free and remains valid as long as you like. Making an account is distinct from becoming a member, because for some activities you must first become a member, but for others that is not obligatory. After creating an account, you will receive an email with confirmation.

Log in

After making an account you are not automatically logged in (for safety reasons). But you can immediately log in with your self chosen password (please be sure to remember it) and you don’t have to wait for the email confirmation. Once you are logged in, you never have to type in information that you have already provided; all new forms will be automatically pre-populated with that information.

If you do not remember your password, no problem, you can do the lost password procedure. Never make a new account; contact the webmaster in case of persistent problems!

Membership registration

Becoming a member requires payment of your membership dues for a given year. Membership is valid to the end of the calendar year. On the form your account information is pre-filled (click on the arrow). Street address information, which might be needed for reimbursements for some universities, is retrieved from the previous year if available, or can be entered. After the payment was successful, you will see a green success message on screen, you can go back to the form (but the payment fields are no longer accessible because you can cannot change your payment), but under my-Status you can see a summary of all your registration information, in addition you will receive two emails: one with an overview, and one with a receipt send by our credit card handler. Also, the button Submit you just clicked will change to Update.

How to pay?

Credit Card

We use Stripe to handle Credit Card payments. You only have to enter your credit card information, that is all.
After a successful payment, your Membership Status will change to Completed and your User Role will switch to “member21” (or “member22”), unleashing new possibilities, such as Conference2022 registration (when that opens).


We did use PayPal, and that still works for membership2021, but we are going to discontinue the use of PayPal. For Research Day 2021 registration and for membership 2022 only a Credit Card can be used. PayPal gave problems too often. But in case you want to use it for member 2021: If you do not have a PayPal account yet you can open one. Opening a PayPal account is free and easy, and you do not need to put money in the account before you pay. Just connect PayPal to your bank account. When you click Submit on the form membership 2021 opting for PayPal, you will be redirected to the PayPal website. You have to login with a valid PayPal account (not necessarily with the same name as on your VNOP account). After making the payment you can click to return to the website. However, although all of this usually happens in less than a minute, it can take as long as 15 minutes for PayPal in rare cases (e.g. because of heavy internet traffic in the world) or even longer.


How do I know my payment was successful? First of all, you will see a green success message on your screen, and under My-Status (top menu) you can see a summary of your registration information. Next, you will receive two emails: one with a receipt for the credit card payment, and one with an overview of all information including your own address. Together, this should suffice for reimbursements from your employer. In addition, you can go back to the form, but the payment fields are no longer accessible (because you are not allowed to change your payment, in case of problems contact the webmaster).

Failed Payments

If you have clicked on Submit but your payment was cancelled, did not go through, or if there were card issues, your status will continue to be indicated as “waiting” and you will receive no invoice by email. You can check if your status is “completed” or “waiting” on the My-Status page or in the form you were submitting, but be patient.
In case of failed payments, on the form itself, the button Submit might be changed to Update. Since Updating does not affect your status, and does not allow payment anew, using it does not help to solve this issue. In very rare cases, if the button is still on Submit, e.g., if you tried go back, you may get a warning you can not submit again.

Fortunately, to solve these problems, if your status does not change within 30 minutes, your entry will be automatically deleted. Once you receive an email message that your entry has been deleted, please try again.


A new membership form will allow you to pay for the next year: member2021, member2022, etc..

This form will have all available information prefilled, so, you typically only have to type in your credit card information (we don’t store that) and submit. We decided not to charge you automatically (in view of consumer protection), so you need to do this each year, but made it very user-friendly to do this.

Old Members (who paid in 2019 or 2020)

If you have paid in 2019, or in 2020, or longer ago your membership is no longer valid and you have to renew (member 22) to be able to register for the 2022 VNOP conference.

Research Day registration

Research Day registration is open to VNOP members, CAS members, and to other colleagues. In the last case a small administration cost will be added to the total costs. The procedure is in other respects like the procedure for member registration. With same kind of email confirmations and a summary on the My-Status page.

Conference registration

Only once you are a member (in the right year) you can register (and pay) for the conference. Non-VNOP members can not register, so become member first. Relevant fields are pre-populated again with your account and member information. You only need to make a few simple choices.

The procedure is like the procedure for member registration in other respects. With same kind of email confirmations and a summary on the My-Status page.

Conference submissions

You do not have to be a member to be able to submit proposals (if the option is available). The procedure is like the procedure for account registration in other respects. With same kind of email confirmation and a summary on the My-Status page.


With questions or problems regarding your account, registration, membership and payments, you can contact the webmaster


Clicking the Update button allows you to make changes like a new address or a new affiliation but updating can not be used to retry payments. To update information, go back to the form you initially entered (or should have entered) the information. You will receive a confirmation email. Next, you may reconfirm the changes on dependent forms.


On the My-Status page you can see a summary of your registrations and submissions. Please scroll down to see them all.