Study cost calculator

No. of participants

T1:

Enter the number of participants (or assignments on MTurk) you plan on recruiting. If you are planning a study with multiple time points T, enter the number of participants for each time point (T1-T3).

Length of study (minutes)

T1:

Enter the estimated duration of your study for an individual participant. If you are planning a study with multiple time points T, enter the study duration for each time point (T1-T3).

Bonus per participant ($)

T1:

Enter the bonus payment each participant will get. If you are planning a study with multiple time points T, enter the bonus payment per participant for each time point (T1-T3).

No. of premium qualifications:

MTurk only: median additional fee of $0.40 per assignment (range from $0.05 to $1.00); MTurk allows a maximum of 2 premium qualifications per HIT

Hourly rate ($)

VAT / tax (%):

Check what level of VAT / tax applies to you depending on your region: Amazon Web Services Tax Help / Prolific Researcher Help Center

Cost breakdown ($)

MTurk service fee: 20% - Pricing details

MTurk service fee for large (>9) assignments/participants: 40%. Circumvent this by breaking down large assignments.

Additional service fee for MTurk Masters Qualifications (higher quality participants): 5%

CloudResearch service fee: 20% plus 20% MTurk service fee; no CR fee for bonuses (standard MTurk fee) - Pricing details

Prolific service fee (academia): 33% - Pricing details

Note: All service fees are calculated as the proportion of total participant payment. Fees are as of March 2024.

Caution: All amounts in the cost breakdown are estimates only, and real fees may differ. We disclaim any responsibility for discrepancies in the actual fees.

Online study cost calculator

No. of participants

Length of study (minutes)

Bonus per participant ($)