Research Design
The primary distinction between experimental designs and quasi-experimental designs.
What is randomization?
In a true experiment, the __________ group does not receive the treatment to examine if the treatment is effective or not.
What is the control group?
This type of question is closed-ended and typically offers a scale from, for example, “strongly agree,” “agree,” “disagree,” and “strongly disagree.”
What is a likert scale?
The key difference between probability and non-probability sampling.
What is randomization?
The difference between quota and stratified sampling.
What is randomization? Quota can not guarantee on other characteristics that the data are representative.
The name for the following experiment.
X O1
O2
What is static group comparison?
An experimental design where one set of experimental and control groups receives both pretest and posttest while the other set of groups receives only posttest. All participants are randomly assigned.
What is the Solomon four-group design?
One benefit and one limitation of the NCVS.
Not limited by what is reported to police (can assess the dark figure of crime), can provide context of victimization experiences, is sampled in such a way that it is representative of the U.S. population. Limitations: Must be over 12 to participate, cannot tell us about homicides, may have some selection bias in that people must consent to participate, individual-level data generally not available for analysis.
When you survey an entire population.
What is a census?
You must have an adequate _____________ to ensure that your sample falls close to the true population mean.
What is sample size?
The name for the following research design:
O1 O2 O3 X O4 O5 O6
What is an interrupted time series?
A quasi experimental design where researchers use observations right around a cut-off score to identify if a treatment worked.
What is regression discontinuity?
To be a good closed-ended question, its responses must be __________ and __________.
The distribution assumed in the theory of probability sampling.
What is a normal distribution?
This sampling strategy requires that a researcher locates one or two individuals who meet the characteristics required and then asks those subjects to recommend other participants.
What is snowball sampling?
The most obvious problem of one shot case study designs.
There is no baseline measure of participants’ attitudes or scores before they receive the treatment.
__________ measures the dependent variable before the experimental stimulus is administered.
What is the pre-test?
When a survey has "skip patterns," these types of questions determine whether the respondent continues answering a question set or skips to a new section.
What is a contingency question?
Why is it important to consider a probability sampling strategy?
What is external validity? Can this sample generalize to the greater population? Better able to avoid selection bias.
DAILY DOUBLE:
The type of sampling technique shown here:
What is stratified?
The difference between random selection and random assignment.
What is random selection is randomization of who gets recruited for a study why random assignment is randomization of who ends up in the treatment and control groups?
Things you must have for a study to be considered a classic experimental design.
Pre-test/Post-test and randomization into treatment and control groups
The name of the large data repository held at the University of Michigan.
What is the ICPSR (Inter-university Consortium for Political and Social Research)?
Wild card question: This is the phrase for mistakenly making inferences about individual relationships when assessing aggregated data.
What is the ecological fallacy?
If I were to sample the first 2 rows of our class, this is the type of sample I would be creating.
What is a convenience sample?