Unit 10 terms Flashcards
quasi experiment
research procedure in which the scientist must select subjects for different conditions from pre- existing groups
research procedure which does not meet the requirements of a true experiment
nonequivalent control- group design
research design having both an experimental and a control group wherein subjects are not randomly assigned to groups
interrupted time-series design
research design that allows the same group to be compared over time by considering the trend of the data before and after experimental manipulation
repeated-treatment design
design in which a treatment is withdrawn and then presented a second time
longitudinal study
in developmental research, a study that tests individuals in a single cohort over the course of time
cross sectional study
in developmental research, a study that tests different age groups at the same time
cross-sequential design
design used to help separate developmental, cohort, and secular effects
program evaluation:
a set of techniques for determining the effectiveness of a social service program
summative evaluation
an evaluation of the qual- ity of a project, often after it is completed
formative evaluation
evaluation of ways to improve a project while it is ongoing