An incomplete repeated measures design experiment was done to test people's ability to solve problems that varied in difficulty at three levels (easy, moderate, and hard). The researcher used all possible orders to balance practice effects. Results indicated that performance on the hard problems was better when they were preceded by a moderate difficulty problem than when they were preceded by an easy problem. Which of the following is a possible explanation of this finding?
A. negative transfer
B. differential transfer
C. progressive error
D. nonlinear practice effects

radiant energy is a form of kinetic energy only.(a)

no the answer is c only objects touching the earth's surface can be acted upon by an outside force

no questions on whether they are allowed that right

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.