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Evaluating Amazon's Mechanical Turk as a Tool for Experimental Behavioral Research

Figure 11

Cognitive Learning: The learning curves for Shepard et al. problems I, II, IV, and VI in Experiment 10.

The top panel compared the results of Nosfosky et al. [38] to the results of Experiment 10. The bottom compares the results of Lewandowsky [40] to the results of Experiment 10 giving two different views of the relationship between the online and laboratory based data. Overall, the Type II problem seems more difficult than in previous report (as is the Type VI). However, in general, the instruction manipulation increased the congruence between the online and laboratory data.

Figure 11