Read the scenario below to determine which one of the threats to external validity (interaction between treatment and selection, interaction between treatment and location or interaction between treatment and history [time]) is of most concern. During the academic school year of 2019-2020 researchers completed a study on the impact of early childhood education on the social development of children in the United States. The researchers randomly selected programs in the county where they were employed to participate in the program. A. Interaction of the treatment and selection B. Interaction of the treatment and location C. Interaction of the treatment and history
Read the scenario below to determine which one of the threats to external validity (interaction between treatment and selection, interaction between treatment and location or interaction between treatment and history [time]) is of most concern. During the academic school year of 2019-2020 researchers completed a study on the impact of early childhood education on the social development of children in the United States. The researchers randomly selected programs in the county where they were employed to participate in the program. A. Interaction of the treatment and selection B. Interaction of the treatment and location C. Interaction of the treatment and history
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Read the scenario below to determine which one of the threats to external validity (interaction between treatment and selection, interaction between treatment and location or interaction between treatment and history [time]) is of most concern.
During the academic school year of 2019-2020 researchers completed a study on the impact of early childhood education on the social development of children in the United States. The researchers randomly selected programs in the county where they were employed to participate in the program.
A. Interaction of the treatment and selection
B. Interaction of the treatment and location
C. Interaction of the treatment and history
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