power_performance_ma: Meta-Analysis Example - Power and Performance
In gitrman/itns: Datasets from the book Introduction to the New Statistics

Description Usage Format Details References

An example dataset used in Chapter 9 of the book Introduction to the New Statistics.

1	power_performance_ma

A data frame with 8 rows and 14 variables:

country: Factor with 2 levels indicating the country where the study was conducted
sample: Factor indicating if the sample was drawn from an undergrad populaiton or from an online site
difficulty: Factor indicating if the task was of normal difficulty or high difficulty
manipulation: If power was manipulated by memory recall or by word search
dvtype: Factor indicating whether the DV was a motor task or a cognitive task
dv: Factor indicating whether the dependent variable was golf, darts, mirror-tracing, or word production
study: Factor indicating the name of the study
m_control: Mean score for the control group
sd_control: Standard deviation for the control group
m_power: Mean score for the power group
sd_power: Standard deviation for the power group
cohensd: Standardized effect size difference comparing control to power groups where positive numbers indicate an advantage for the power group
n_control: Sample size for control group
n_power: Sample size for power group

To what extent can feeling powerful improve your performance? To find out, Burgmer and Englich (2012) manipulated power by: (i) Asking participants to recall either a nuetral memory or a time when they had power over others (Experiment 1); (ii) Asking participants to complete a word search where the words were either neutral or related to power (Experiment 2). Next, participants were asked to perform a motor task: either golf (Experiment 1) or darts (Experiment 2). In both studies, participants primed to feel powerful performaed substantially better than the control group. This study was conducted in Germany. Cusack et al. (2015) conducted a series of replications in the U.S. to better understand how much power might affect performance. In addition to a close replication of Burgmer & Englich's first study (Experiment 1) they tried a number of variations. Specifically, they tried different ways of manipulating power (memory and word-search), different types of tasks (golf, mirror tracing, and a cognitive word-production task), different sample types (online or undergrads), and different difficulties (normal or hard).

Cumming, G., & Calin-Jageman, R. (2017). Introduction to the New Statistics. New York; Routledge.

gitrman/itns documentation built on May 17, 2019, 5:29 a.m.