1point
a researcher wishes to examine the effects of a new reading program on
students' literacy skills. the researcher plans to examine the effects on
students in a kindergarten classroom. what is wrong with this design?
select all that apply.
✓
a. a control group is not used.
o
b. randomization is not used.
c. the entire population is not used.
o
d. only one grade level is described.
submit

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42