Thirty percent of the subjects dropped out of an experimental study looking at the effect of a job training program on employmen
t for homeless women. over 90% of the dropouts were single homeless women with at least two preschool children, while the majority of subjects successfully completing the program had no preschool children. what threat to internal validity could be present?
<span>The threat to internal validity is the Mortality. Internal
validity is the measure in which the causality of the stimuli studied
is analyzed, that is, if the results of the study are due to the
interaction of the variables analyzed or are due to the interaction with
other variables. <span>Mortality is an error that occurs if the
conclusions of the study are made only on the basis of the participants
who were from beginning to end in the investigation, without taking into
account those who left the study.
The Preamble to the U.S. Constitution summarizes the Founding Fathers’ intention to create a federal government dedicated to ensuring that “We the People” always live in a safe, peaceful, healthy, well-defended—and most of all—free nation.
