Problems in drawing correct inferences about whether the covariation between the presumed treatment variable and the outcome reflects a causal relationship.
What are threats to internal validity?
200
The square root of the average of the squared deviations from the mean. You first find the variance and then take the square root of the variance.
What is standard deviation?
200
Variability indicates the spread of the scores in a distribution.
What is a measure of variability?
200
SEM is the Standard Error of Measurement. It is used to calculate confidence intervals of scores.
What is SEM and how is it used.
300
Consists of answering the major research questions and forming an in-depth understanding of the central phenomenon through description and thematic development.
What is developing a theme or idea from qualitative research?
300
Investigators use the correlational statistical test to describe and measure the degree of association between two or more variables or set of scores.
What is a correlational research design.
300
Conclusion that the results of a study would be unlikely if in act there were no association in the larger group you want to know about.
What does it mean to be statistically significant?
300
The educational issues and controversies or concerns that guide the need for conducting a study. Authors state it as a single sentence or several sentences in a research report.
What is a research problem?
300
Two-tailed tests are used when no direction is specified. One-tailed tests are used to determine whether a result is greater or lower than another result.
What is the difference between one-tailed and two-tailed tests?