As researchers our job is to is to eliminate this as a factor contributing to differences between groups.
What is chance?
100
This type of descriptive research method involves a face to face question and answer session between the researcher and the participant.
What is an interview?
100
This type of research is used to explore a culture.
What is ethnography?
100
This experimental design uses no random assignment
What is qausi- experimental?
200
This measure of central tendency provides the most information.
What is the mean?
200
the degree of risk associated with not being 100% confident the differences you observe in scores are due to the treatment
What is statistical significance?
200
Unstructured questions are also known as this.
What are open-ended questions?
200
This research method studys an individual in as much detail as possible.
What is a case study?
200
Pretest posttest control group is an example of this type of design
What is true experimental?
300
This measure of central tendency is most often used when the data has extreme scores
What is the median?
300
statistical test used to determine if a difference exists between two data collection times
What is t-test for dependent means?
300
This is the most frequently used test to measure relationships.
What is Pearson product moment correlation coefficient?
300
This type of sampling is used in qualitative research.
What is purposeful?
300
This type of validity is synonymous with control
What is internal validity?
400
The average amount that each score varies from the mean of the set of scores
What is the standard deviation?
400
statistical test for examining the significant difference between the means of two unrelated groups such as the experimental group and the control group?
What is independent t-test?
400
A correlation co-efficient of -1 describes this type of relationship
What is a perfect negative correlation?
400
In historical research, original artifacts are considered this type of source.
What is a primary source?
400
This is the most serious threat to internal validity in the nonequivalent control group design
What is selection?
500
This measure would be used to compare scores that use different measurement units
What are z scores?
500
There is a less than 5% probability that a study's findings were due to chance when significance is at this level.
What is p < .05 ?
500
The following statement describes this type of correlation
The more you study, the better your grade will be.
What is positive correlation?
500
This qualitative method is used when individuals and groups research their own personal beings, socio-cultural settings and experiences
What is participatory action research?
500
This external threat to validity occurs when people change their behavior because they have knowledge about the experiment