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What is regression to the mean, and why is it a threat to the validity of research designs in which random assignment has not been used?
What techniques can be used to minimize these potential interpretive problems? What are the most important threats to validity that occur in quasi experimental?
What are the most important threats to validity that occur in quasi-experimental research designs when individuals are not randomly assigned to groups?
What are quasi-experimental research designs, and when are they used in behavioral research?
Explain what is a quasi-experimental research design? When are such designs used, and why?
Develop a conceptual replication and a constructive replication that investigate the expected boundary conditions for the original relationship.
Identify the purpose of the replication and the type of replication that was used. What are the important findings of the research?
Why it never possible to know whether research finding will generalize to all populations of individuals? How do behavioral scientists deal with this problem?
What is the purpose of review papers and meta-analyses? What are the differences between the two?
What is the purpose of replication? What are the differences among exact, conceptual, and constructive replications?
How does ecological validity help increase confidence that an experiment will generalize to other research settings?
In what ways are experimental research designs preferable to correlational or descriptive designs? What are the limitations of experimental designs?
How does the Analysis of Variance test hypotheses about differences between the experimental conditions?
How do experimental research designs allow us to demonstrate causal relationships between independent and dependent variables?
Calculate the Pearson correlation coefficient between the variables. Was your hypothesis about the nature of the correlation supported?
In what ways can correlational data provide information about the likely causal relationships among variables?
What is the difference between a common-causal variable, an extraneous variable, and a mediating variable?
What are a linear relationship and a curvilinear relationship? What does it mean if two variables are independent?
When are correlational research designs used in behavioral research? What are their advantages and disadvantages?
How can correlational data be used to make inferences about the causal relationships among measured variables?
What can you conclude about the finding? List two other pieces of information that you would need to know to fully interpret the finding.
What is the purpose of means comparisons, and what different types of means comparisons are there? What do they tell the researcher that the significance test.
What are main effects, simple effects, and interactions? How should significant main effects be interpreted when one or more of interactions are significant?
What are three advantages of factorial experimental designs over one-way experimental designs?