Healthy Decision Making
This is the type of research that requires planning and building a recruitment process.
Proactive research
This type of validity determines whether observed differences in the dependent variable are due to the intervention.
Internal
[Blank] must occur before intervention.
Randomization
This type of design is often used in social service programs.
Pre-experimental
The name of this research design is:
X O
One-Group Posttest Only
This is a controlled study where subjects are randomly assigned to groups and will receive a new intervention from those in the control group.
Experiment
This internal threat says that there was bias in choosing and assigning participants to groups.
Selection of subjects.
This is the group that does not receive the intervention.
Control
When randomization is not possible, [blank] is the next best thing.
Matching
The name of this research design is:
R. O1. X. O2
R. O1. O2
R. X. O2
R. O2
Solomon Four-Group design
This is the type of research where the researcher may draw on existing data.
Retroactive research
This internal threat occurs when extraneous variables interact with each other.
Interaction Effects
This is the procedure used when neither the subjects nor the researcher knows which group subjects belong to.
Double-blind procedure
This type of design includes these three sub-designs:
Nonequivalent Control Group
Time-Series (Interrupted Series)
Multiple-Time Series
Quasi-Experimental
The name of this research design is:
O1. O2. O3. X. O4. O5. O6
O1. O2. O3. O4. O5. O6
Multiple-Time Series design
These two types of research designs do not require random assignment of participants.
Pre-experimental
Quasi-experimental
This external threat occurs when there are problems obtaining a random sample.
Interactive Effects of Selection Biases and any Research Stimulus
This research design does not use a pretest before intervention.
Posttest-Only Control Group
This type of design has no serious threats to internal validity.
Multiple-time series
The name of this research design is:
R. O1. X. O2
R. O1. O2
Pretest-Posttest Control Group design
It is crucial to lessen the chances of these types of factors influencing your dependent variable and keeping the researcher from making confident conclusions about findings.
This external threat occurs when subjects respond or behave differently based on the environment they are in.
Reactive Effects of Arrangements
This type of research design uses tests before and after to measure the effect of an intervention.
Pretest-Posttest Control Group
The main threat to nonequivalent control group design is:
Interaction of selection with maturation, history or testing
The name of this research design is:
O1. X. O2
O1. O2
Nonequivalent Control Group design