The most important difference between weak and strong research designs is that strong designs
a. include both a pre-test and a post-test.
b. have greater internal validity.
c. have greater external validity.
d. include more than one independent variable.
B
You might also like to view...
The nations ranked highest and lowest according to the Human
Development Index (HDI) in 2010 differed most dramatically in regard to their: a. adult literacy rates. b. mortality rates for children under 5. c. life expectancies. d. infant mortality rates.
Machine politics aided in decentralizing power in large populous cities to better accomplish priorities
Indicate whether this statement is true or false.
By decreasing taxes and increasing government programs, Bush, not surprisingly, caused a large rise in the federal deficit
Indicate whether the statement is true or false
Successful theories about world politics allow for specific predictions of events
Indicate whether this statement is true or false.