A principal wanted to award prizes to students who demonstrated the best sense of citizenship. The principal asked the students' teachers and their immediate past teachers to rate the students. With which type of reliability should the principal be most concerned?
(a) Internal consistency reliability
(b) Alternate forms reliability
(c) Scorer reliability
C
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Which of the following is not a step in the effective instruction of learners who are gifted and talented?
a. Preassessing the students to determine their current level of content knowledge b. Grouping children according to ability for instructional purposes c. Giving accelerated students more assignments to keep them busy until the other students master the content d. Providing products that will motivate and teach students
What is the formula for calculating the inclusive range?
a. r ? n + 1 b. h ? l + 1 c. (h ? l) r d. h ? l
A state passes a law requiring mandatory seatbelt use and claims it has reduced traffic fatalities. At the same time that the seatbelt law was changed, speed limits were also reduced from 70 MPH to 55 MPH by the federal government. Traffic fatalities decreased during the first year of the seatbelt law. The change in the speed limits represents what kind of threat to internal validity?
a. Maturation effect b. Instrumentation effect c. Testing effect d. History effect
An important distinction between the United States and many other countries is that the head of the military is a civilian
a. true b. false