Col­lect­ing High Quality Data From Your Online Participants


If you’re build­ing an experiment in Gorilla, you’ll need to decide how to recruit and reward your participants.

If you want a random sample of a par­tic­u­lar demo­graph­ic, and you have plenty of budget avail­able, a par­tic­i­pant recruit­ment service can be a great way to go.


Alter­na­tive­ly, you might prefer to choose your own par­tic­i­pant pool. You may want to crowd­source on social media, col­lab­o­rate with a charity or other organ­i­sa­tion, or get the word out about your study with a PR campaign.


In any of these cases, recruit­ing your own par­tic­i­pants gives you control and flex­i­bil­i­ty. It also means you’ll need to set up your own system to reward par­tic­i­pants for their time.


It’s impor­tant to reward par­tic­i­pants fairly to ensure they feel moti­vat­ed, engaged and valued, which is both good for them and good for your data quality! The down­side is that it can be too time con­sum­ing to contact all of them about a small payment.


Con­se­quent­ly, researchers often resort to a raffle sce­nario “One random par­tic­i­pant will receive £50 for their time. While every­one else gets £0.”


But what if there was a better way to gift par­tic­i­pant a token of appre­ci­a­tion in return for their work, without the admin­is­tra­tive hassle?  That’s where BHN Rewards comes in.


Sim­pli­fy and Stream­line the Reward­ing Process with BHN Rewards

BHN Rewards is a digital incen­tives man­age­ment tool that takes the admin work out of reward­ing your par­tic­i­pants. Instead of offer­ing your par­tic­i­pants a 1/50 chance at a $50 Amazon voucher, you can offer every­one a guar­an­teed dollar off their next coffee.

In addi­tion to the afore­men­tioned ben­e­fits, BHN Rewards is GDPR-com­pli­ant, and offers enhanced secu­ri­ty fea­tures to protect par­tic­i­pant anonymi­ty, such as data-masking and the de-cou­pling of per­son­al iden­ti­fi­able infor­ma­tion (PII) from the data col­lec­tion platform. 


The BHN Rewards plat­form sup­ports two dif­fer­ent styles of incentives: 


  1. Instant Rewards – where par­tic­i­pants receive the digital reward in their email imme­di­ate­ly after com­plet­ing a survey.


  2. Points-to-Rewards – where par­tic­i­pants earn points for each action they com­plete. Their points are accu­mu­lat­ed over time and when they reach a set thresh­old, their points are redeemed for a desir­able digital reward.  This is a popular option for lon­gi­tu­di­nal studies that require con­tin­ued participation. 


Cre­at­ing a Delight­ful Reward­ing Expe­ri­ence for Participants

With BHN Rewards, aca­d­e­m­ic researchers can deliver a delight­ful recip­i­ent expe­ri­ence; the exten­sive reward catalog fea­tures leading brand names such as Star­bucks, Apple, and Barnes & Noble, as well as prepaid Visa and Mas­ter­Card. The Smart Global Choice feature pre-detects the recipient’s loca­tion and shows them a list of rewards avail­able in their country.

BHN Reward’s 100% refund policy for unclaimed rewards decreas­es budget waste. More than 150 col­leges and uni­ver­si­ties utilize BHN Rewards for their research programs. 

Inte­grate BHN Rewards with Gorilla

To make using BHN Rewards in your experiment easy, there is now an inte­gra­tion avail­able to add to your Gorilla account.


Visit your Gorilla My Account page ( and select the Inte­gra­tions tab to find the BHN Rewards inte­gra­tion. There is also support infor­ma­tion avail­able here:


Gorilla offers a number of recruit­ment poli­cies, from a simple link you can share on social media, to super­vised or Email ID poli­cies which allow you to invite a spe­cif­ic list of people to par­tic­i­pate. You can find a full list of Gorilla recruit­ment poli­cies here:


If you still want to give par­tic­i­pants a 1/50 chance of winning $50 and 49/50 chance of a cup of coffee that’s still pos­si­ble.  Simply ran­domise par­tic­i­pants to to two dif­fer­ent BHN Rewards end points — one with the big prize and one with the cup of coffee.


With BHN Rewards, paying your par­tic­i­pants is one more thing that’s now easier to do.  Let us know how you plan to use the inte­gra­tion and how you get on.


Happy Exper­i­ment­ing!


Jo Ever­shed

Jo is the CEO and co-founder of Caul­dron and Gorilla. Her mission is to provide behav­iour­al sci­en­tists with the tools needed to improve the scale and impact of the evi­dence-based inter­ven­tions that benefit society.