Research by Nancy Segal (2000) supports the concept of inclusive fitness in studies showing that ________ are more alike in their helping patterns and are more likely to aid each other than are ________

According to the chapter Flash in the Panabout flashbulb memories, there was a high rate of participant

attrition between the test and the retest. What does thatmean? (a) a large numberof participants dropped out of the study (b) almost all of the participants remained in the study to complete both the test and the retest (c) a large number of participants lost their memories of the events of September 11, 2001 (d) a large number of participants were found to be intentionally misleading the researchers

If categories are formed using exemplars:

a. each new object must possess all the necessary features to be considered acceptable members of a category b. each new object is compared to the existing members of the category c. category membership is determined by the particular set of core features an object possesses d. each new object is compared to the best or most representative member of the category