chap 8 key takeaways

Question 1

Quasi-experimental research involves the manipulation of an

Answer 1

independent variable without the random assignment of participants to conditions or counterbalancing of orders of conditions

Question 2

the 3 quasi-experimental designs in the within-subjects nature:

Answer 2

1. one group posttest only design
2. one group pretest-posttest design
3. interrupted time-series design

Question 3

5 types of quasi-experimental designs that are between-subjects

Answer 3

1. posttest only design with non equivalent groups
2. pretest-posttest design with non equivalent groups
3. interrupted time series design with nonequivalent groups
4. pretest-posttest design with switching replication
5. switching replication with treatment removal design

Question 4

Quasi-experimental research eliminates the directionality problem because

Answer 4

it involves the manipulation of the independent variable.

Question 5

quasi-experimental research is
generally higher in

Answer 5

internal validity than non-experimental studies but lower than true experiments

Question 6

why are quasi-experimental research higher in internal validity?

Answer 6

bc it does not eliminate the problem of confounding variables bc it doesn’t involve random assignment to conditions or counterbalancing

Question 7

the quasi-experimental designs that include a what are highest in internal validity?

Answer 7

a switching replication