| chapter_9_table_7 {AMCP} | R Documentation |
The data used in Chapter 9, Table 7
Description
The data used in Chapter 9, Table 7
Usage
data(chapter_9_table_7)
Format
An object of class data.frame with 30 rows and 3 columns.
Details
The data shown in Table 9.7 represents a hypothetical three-group study assessing different interventions for depression. 30 depressive individuals have been randomly assigned to one of three conditions: (1) selective serotonin reuptake inhibitor (SSRI) antidepressant medication, (2) placebo, or (3) wait list control. The Beck Depression Inventory (BDI) has been administered to each individual prior to the study, and then later is administered a second time at the end of the study. The data represents a three group pre-post design, where the 30 depressives were randomly assigned to one of three conditions. The primary question of interest is: "do individuals in some groups change more on their measures of depression than do individuals in other groups?"#'
Variables
- cond
the treatment condition (SSRI, Placebo, Wait List Control)
- pre
the measure of depression before the experiment
- post
the measure of depression after the experiment
Synonym
C9T7
Author(s)
Ken Kelley kkelley@nd.edu
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.
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.
Examples
# Load the data
data(chapter_9_table_7)
# Or, alternatively load the data as
data(C9T7)
# View the structure
str(chapter_9_table_7)