1. Franklin Kramer

2.   Background  Experiment  Results  Conclusions Overview

3.   Online labor market still in early stages  How do you determine wages?  If it takes 30 seconds to complete one HIT properly, then a price of $0.05 per HIT works out to a rate $6/hour.  To what extent are workers affected by time it takes to complete a task (extra time spent, accuracy of results?)? Background

4.   “Copy numbers from a random generator.”  Page designed differently for each experimental group (0, 3, 6, 9 second delay)  Created log with numbers and timestamps generated in background Experimental Design

5.  Results % error Time delay before number generated (in seconds)

6.  Results Time taken to submit HIT (seconds) Workers (sorted by time increasing) Workers (sorted by time increasing) by Time to Submit HIT

7.  Results Time taken to submit HIT (seconds) Workers (sorted by time increasing) Workers by Time to Submit HIT (sorted by time increasing, total waiting times subtracted per group)

8.  Results Time Order Number Order of Number Generated (second, third, fourth) by Amount of Time to Generate Number (waiting times removed)

9.   Mechanical Turk workers tend to give accurate results independently of the amount of time it takes for the task to be done  Waiting has varying effects on efficiency not necessarily dependent on waiting time  Further research can be done on why delays in the extremes (0 and 9 seconds) made workers less efficient than midrange delays (3 and 6 seconds). Conclusions