Question

Three condition longitudinal study

Forum|Forum|16 days ago
June 20, 2026
2 replies
54 views

Hannahp

Hello,

I am conducting a three condition longitudinal study, that requires participants to in questionnaire 1 give consent, questionnaire 2 enter their email address and then questionnaires 3,4,5 data is collected.

I need to link participants data responses in Questionnaire 3,4,5 for data analysis. Between 3 and 4 I will be sending out personalised feedback from questionnaire 3 to each participant with a link to questionnaire 4.

My ethics board has required that the email address of participants is collected and stored seperately to the questionnaire responses. My question is how can I link the unique ID created in response to collection of email address to the subsequent questionnaires. So the questionnaires are sent to the correct people?

Thank you in advance for you help.

D

+1

DrCSLow
Level 1 ●
Forum|Forum|14 days ago
June 22, 2026

If I am understanding correctly (and please correct me if I am not), you want each participant to complete one consent form, one email address collection form, and then three different questionnaires throughout the course of the study. Do you need the consent form tied to their unique ID or email as well? If so, I would recommend either 1) collecting email address in the same form as consent or 2) collecting email address first, so that you can create a mailing list to tie subsequent responses to for the rest of the questionnaires, including the consent form.

You could then generate personal links for each participant to send them with their personalized feedback so their data are all tied to the same unique ID. (You will want to use workflows to automatically build your directory mailing list of contacts and potentially send out certain questionnaires.)

I hope this helps!

Caitlin

Caitlin Lowery, EdD