Changes

'''Step 4, Choosing Pay Level:''' Once you have named the project, you have to decide on pay scale (Reward per assignment) and the number of people working on each project (number of assignments per HIT). The higher the pay per HIT, the quicker your work will be completed by turkers, but you obviously do not want to waste money. A good rule of thumb is to work on the tasks you need completed by turkers for 30-60 minutes and then see how many rows you completed. We want the per HIT pay rate to roughly equal $6.00 - $10.00 in hourly wage to get things done efficiently on the system. For example, if 50 rows can be completed in 30 minutes, then the pay level per HIT will be $10/2/50 =$0.1. If you decide to have more than 1 worker per HIT, it will be because you believe that the data task requires a certain amount of human judgement and you want to make sure that you only accept results that have been "verified" by multiple people. The last three parameters in this box determine how each HIT will be completed by each worker and how long the HIT stays in the system. You generally want "Time Allotted" to be 1 dayhour. Expiration of the HIT doesn't matter that much. One of the last important choice in this screen is the "Auto-approve" option. The quicker the auto approve, the more likely that Turkers will take your task. For now, set it to 24 hours, but remember that you are responsible for regularly auditing results when you have a project up on the Turk system.

Figure 24: Cost Parameters in Mturk{{clear}}

'''Step 45, Design Layout:''' At this point, you have to design what the turker sees when they receive your assignment. While it is possible that one turker will complete multiple HITs, it is important to design the HIT so that it can be easily completed the first (and possibly only) time by the worker. In figure 3, below, you can see the initial design layout of the default data acquisition project in the turk system. It is an example HIT that asks turkers to find the website of a restaurant. Please note that this is not a great HIT in terms of the level of clarity of the instructions. We will provide guidelines on creating instructions below. For now, just notice a few features of the HIT. To the right of "Restaurant Name", there is a field called ${name}. This is actually a hook, or a blanks space, that will be populated with the actual name of a restaurant that will come from a spread sheet that you will upload into the turk system. Each HIT will correspond to one row of the spreadsheet. This is the same for the "Address" and "Phone Number" rows. The last key thing to notice is the "Website Address" field with a text entry box right below it. When a turker receives this HIT, they will paste the web address into this text box and you will receive a new spreadsheet with whatever they (add all the other turkers) pasted in the same row as the data you used to populate each HIT.

Figure 35: Design Layout {{clear}}

Figure 46: Design Layout, Raw HTML {{clear}}

Figure 57: HIT Preview {{clear}}

'''Step 56, Publishing a Batch:''' Now that you have your HIT Template ready, you can post to the Turk system. To do so, Click the "Publish Batch" button in figure 6. It will then ask you to upload a csv file for that batch. Remember that this CSV file has to have headers that correspond to the data hooks in your template. Once you have successfully uploaded, you should be able to confirm payment and publish the batch. If there is not enough money preloaded on the turk system. Notify either Dan or Ed.

Figure 68: HIT Publishing{{clear}}