Which psychologist adopted a pragmatic, trial-and-error approach to psychological measurement that continues to serve as the predominant approach to test construction today?

Which type of market produces the highest level of output at the lowest price to consumers?

He chart shows the 112th u.s. congress (2011–2012). based on the information in the chart, if the independents in the senate chose to vote with the republicans in the senate, the republicans would

Between 1518 and 1548, spanish conquistadores conquered most of the new world, motivated by the a) desire for scientific knowledge. b)  to urge to claim more territory for spain. c) belief that an all-water western route to the orient existed. d) desire to advance national glory, serve god, and seek personal wealth.