Property? there is not much to go off of for this question
Answer:
1.a 2.c 3. d 4. b
Explanation:
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Answer:Psychology as a self-conscious field of experimental study began in 1879, in Leipzig Germany, when Wilhelm Wundt founded the first laboratory dedicated exclusively to psychological research in Germany
Answer:Students do not learn to work with people of differing abilities.
Explanation:
researchers found that tracking caused a decrease in student achievement for low-track students and increased achievement for students placed in the higher track.