If you haven't done these surveys by Survey Research yet, they have 6 up and they seem to be only about 2 or 3 minutes: https://www.mturk.com/mturk/searchbar?selectedSearchType=hitgroups&requesterId=AE1AXG1ULEGLD Edit: Master's only, sorry!
Title: Commercial Evaluation (10/22) Requester: Stanford GSB Behavioral Lab [A3OSXTUM1QEXNY] (TO) TO Ratings: ☭☭☭☭☭ 3.76 Communicativity ☭☭☭☭☭ 3.76 Generosity ☭☭☭☭☭ 4.40 Fairness ☭☭☭☭☭ 4.36 Promptness Number of Reviews: 362 (Submit a new TO rating for this requester) Description: Earn $0.60 for about 6 min! Time: 5 hours Hits Available: 56 Reward: $0.60 Qualifications: HIT approval rate (%) is not less than 95; Location is US
Title: 7 minute research task about consumer finance Requester: Spending and Saving Study [A1LQF59W9ZFP8M] (TO) TO Ratings: ☢☢☢☢☢ 3.56 Communicativity ☢☢☢☢☢ 3.69 Generosity ☢☢☢☢☢ 5.00 Fairness ☢☢☢☢☢ 4.96 Promptness Number of Reviews: 58 (Submit a new TO rating for this requester) Description: Short study asking for your financial information and for your attitudes towards different situations Time: 60 minutes Hits Available: 1 Reward: $0.50 Qualifications: Total approved HITs is not less than 500, HIT approval rate (%) is not less than 95
If I get one more broken hit... (3 in a row now) [video=youtube;q-y1MigqKYc]https://www.youtube.com/watch?v=q-y1MigqKYc[/video]