chapter_7_table_9 dataset

The data used in Chapter 7, Table 9

Format

An object of class data.frame with 36 rows and 3 columns.

Source

https://designingexperiments.com/data/

Maxwell, S. E., Delaney, H. D., & Kelley, K. (2018). Designing experiments and analyzing data: A model comparison perspective. (3rd ed.). New York, NY: Routledge.

data(chapter_7_table_9)

Details

The following data is a generalization of the blood pressure data given in Table 7.5 (which itself was a generalization of the data given in Table 7.1). After the interaction is found to be significant, a common recommendation is to examine simple main effects. Recall that a simple main effect is the main effect of one factor given a fixed level of another factor. In this case interest is in determining if there are any differences in drugs (a) given biofeedback and (b) given no biofeedback.

Variables

• score: blood pressure
• feedback: the likelihood of there being a biofeedback or drug main effect
• drug: the level of the drug factor

Synonym

C7T9

Examples

# Load the data
data(chapter_7_table_9)

# Or, alternatively load the data as
data(C7T9)

# View the structure
str(chapter_7_table_9)

References

Maxwell, S. E., Delaney, H. D., & Kelley, K. (2018). Designing experiments and analyzing data: A model comparison perspective (3rd ed.). New York, NY: Routledge.

Author(s)

Ken Kelley kkelley@nd.edu