2-11 Flashcards
mixed designs
An experimental design that includes between-subjects as well as within-subjects factors.
An experimental design that includes between-subjects as well as within-subjects factors.
mixed designs
nested designs
An experimental design with a within-subjects factor in which different levels of one independent variable are included under each level of a between-subjects factor.
An experimental design with a within-subjects factor in which different levels of one independent variable are included under each level of a between-subjects factor.
nested design
covariate
a correlational variable in an experimental design
a correlational variable in an experimental design
covariate
advantages of covariates?
reduces error variance
quasi-experiment
a correlational variable (e.g., gender) that looks like an experimental variable
resemble experiments, but use quasi-independent variables as factors
quasi-independent variable must not be interpreted as CAUSING changes in the DV
a correlational variable (e.g., gender) that looks like an experimental variable
quasi-experiment
advantages of quasi-experiment
f
pretest-posttest design
pretest administered before exposure to experimental treatment, used to assess the impact of some change on performance
test administered before exposure to experimental treatment, used to assess the impact of some change on performance
pretest-posttest design
Features o the pretest-posttest design
mixed design with pretest-posttest as the w/in Ss factor and with Tx vs. no Tx as the b/t Ss factor
cross-sectional design
participants from different age groups are run through a study at the same time
participants from different age groups are run through a study at the same time
cross-sectional design
