Which of the following statements is characteristic of external validity?
a) Threats can be controlled with specific designs
b) Most threats are a consideration regardless of design
c) Novelty and disruption effects are usually controllable
d) The nature of internal validity determines the external validity
B
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Which of the following is NOT a “Rule of Engagement” in the classroom?
A. Talking in class B. Turning off your cell phone C. Eating before class D. Arriving on time
The results from Q12 are below. What conclusion should be drawn? Ranks Mean Rank Bus. Plan A 1.20 Bus. Plan B 3.00 Bus. Plan C 1.80 Test Statistics (a) N 10 Chi-Square 18.667 df 2 Asymp. Sig. .000
A. There is a significant difference in ratings, and Plan B is higher than Plan C which is higher than Plan A. B. There is a significant difference in ratings, with Plan A being higher than Plan C which is higher than Plan B. C. There is no significant difference in ratings, D. Not enough information.
A child learns how to express emotions:
A. in her family B. from peers C. by reading books D. by watching movies E. all of these are true
Which of the following causes of changes in the Earth's surface come from heat and pressure?
A. Erosion B. Weathering C. Internal forces D. Continental drift