Aresearcher wishes to examine the effects of a new curriculum on students'
algebraic understanding. the researcher plans to examine the effects on
students in an algebra i classroom. what is wrong with this design?
select all thatſapply.
a. less than three groups are being compared.
o
b. an entire population is not used.
c. students are not randomly assigned to an experimental group and
control group.
o
d. a control group is not used.