Identify the major threat to internal validity in the following research studies. A teacher researcher randomly assigned students within a classroom to two groups, one of which received some special instructional materials to take home with them to study and to use with homework assignments. The C group did not get the special materials. The researcher was surprised to find that there weren't
significant differences between the two groups on achievement tests and other selected measures.
a. Regression
b. Diffusion
c. Mortality
d. Selection
e. History
B
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Best practices in planning for outdoor play include all, except the following:
a. flow between the indoor and outdoor classroom. b. nature and art materials accessible outdoors throughout the day. c. recess for 15 minutes a day. d. sharing observations of children's outdoor play with parents and caregivers and discussing what developmental progress is seen.
The comparison of the United States to a melting pot
A. Is an accurate metaphor that captures the assimilation of immigrants from all over the world. B. Ignores the fact that people of color were excluded from many of the rights of citizenship. C. Is a common phrase that describes cultural pluralism in the United States. D. Is at the heart of multiculturalism.
Some children with AD/HD who are not eligible for special education services may still receive special help from their general education teachers through accommodations described in a(n)
A. IFSP. B. 504 Plan. C. AD/HD IEP. D. 94-142 Plan.
The World Wide Web was created jointly by members of NSTA and the NSF
Indicate whether the statement is true or false.