dataAnova_rb: Data for a Randomized Block ANOVA

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Data for a Randomized Block ANOVA

Description

Seven people, with differing amounts of muscle strength, took one of four different pre-workout supplements and then did a bench press of 125 lbs as many times as possible. Each person did four workouts at four different times, with a different supplement before each workout. The experimenter randomized the presentation order of the supplements to each person to avoid any artifacts from presentation order.

Format

A data table with 7 rows of data and 5 columns: Person, and sup1 through sup4 for the four supplements.

Author(s)

David W. Gerbing (Portland State University; [e-mail])

Source

author

References

Gerbing, D. W. (later in 2022). R Data Analysis without Programming, 2nd Edition, Chapter 7, NY: Routledge.

Gerbing, D. W. (2021). Enhancement of the Command-Line Environment for use in the Introductory Statistics Course and Beyond, Journal of Statistics and Data Science Education, 29(3), 251-266, https://www.tandfonline.com/doi/abs/10.1080/26939169.2021.1999871.

Examples

d <- Read("Anova_rb")
d <- reshape_long(d, sup1:sup4, group="Supplement", response="Reps")
ANOVA(Reps ~ Supplement + Person)

lessR documentation built on Nov. 12, 2023, 1:08 a.m.