Ch 8 Vocab

comparison of the results of two or more groups

a study design in which the groups are randomly assigned (e.g., one setting receives an intervention and another does not), but the individuals within the groups are not randomized

a group in which participants receive an alternate intervention, a standard intervention, or no intervention

a design in which participants are randomly assigned to groups and receive the same treatments but in a different order

a study with more than one independent variable, in which the interaction or impact of both independent varaibles can be examined simultaneously

in a statistical analysis the between group comparison

the statistical analysis that considers the between and within comparisons simultaneously

also known as a nonrandomized controlled trial; a comparison of two ore more groups without randomization to group

a study in which at least two groups are compared, but participants are not randomly assigned to groups; also called a quasi-experiment

a research design that examines the outcomes of an effect (such as an intervention) on a groups of individuals without comparing that effect to a control or comparison group

a study that is designed before data collection takes place

combines an assessment of quality of life and the number of years of life added by an intervention

a research design that compares at least two groups but does not randomly assign particpants to groups, also called a nonrandomized controlled trial

a type of research design that includes at least two groups (typically an experimental group and a control group), and participants are randomly assigned to the groups

a symbolic representation of the design of a resarch study

a study that looks at the efficacy of an intervention but does so after data collection has already taken place and relies on the use of existing data

a research design in which each participant's response to an intervention is analyzed individually

in a statisticaul analysis the comparison of two or more time points, also known as the within group comparison

a comparison of changes or differences within the same groups, such as pretest and posttest comparison