The heritability of nearsightedness in monozygotic twins is almost
20 percent.
40 percent.
70 percent.
90 percent.
90 percent.
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Sam skips school so that he can play video games at the arcade. Sam's parents find him there and make him mow the lawn when they get home. As a result of having to mow the lawn, Sam doesn't skip school to go to the arcade anymore. Having to do something he dislikes as punisher for the problem behavior is an example of:
a. extinction b. negative punishment c. negative reinforcement d. the Premack Principle
Speech segmentation is defined as
a. creating a sentence from a series of spoken words. b. ignoring the spaces between the spoken words of a sentence. c. organizing the sounds of speech into individual words. d. recognizing a few words out of many when hearing a largely unfamiliar language.
While maltreated children typically suffer from physical and cognitive deficits, deficits in ______ are even more pronounced
Fill in the blank with correct word
Ms. Allan developed a test intended to measure eighth-grade children's knowledge of mathematics. Although children who took the new test twice received similar scores on both occasions, the test contained only multiplication problems. Ms
Allan's test has __________ reliability and __________ validity. A) high; low B) low; low C) high; high D) low; high