1. Workers have extrinsic and intrinsic motivation
2. Researchers have more control over participant pool
3. Performance is similar between college students and Mturkers

Pros for using MTurk as participant pool

1.  Mturk workers are not a representative sample
2. Workers may be more willing to cheat
3. Practice effects
4. Less likely to get a random sample

Cons for using MTurk as participant pool

Mechanical Turk (MTurk) is an online crowdsourcing marketplace created by Amazon that serves as a valuable participant recruitment tool for survey researchers. Originally designed for simple usability testing, MTurk provides access to a massive, diverse global database of workers. Researchers can use it to test questionnaire items, manipulate sampling parameters, and rapidly deploy experiments at a very low cost to gather high-quality data.

Mechanical Turk in Survey Research

Mechanical Turk (MTurk) is an Amazon created online job marketplace built for internet workers. The marketplace is created for companies to provide tasks for Mturkers. Mturkers are paid to complete low skill tasks, such as data entry or data cleaning.

DePaul University

There are two prospective on the impact of rewarding on participants' performances.
- Economic behaviorists
- SDT self determination theory
- Using Mturk as a participant pool 


Rewarding participants Good or bad?

Paolacci, G., & Chandler, J. (2014). Current Directions in Psychological Science, 23(3) 184-188. https://doi.org/10.1177/0963721414531598. 

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