Answer:
b. operational definition
Explanation:
Operational definition is the expression of procedure used to define the nature of an event or situation especially used during data collection. In this question, the sentence subject used is 'the intensity of the electrical shock the students are to receive'. Which mean it is asking specifically on the subject of the intensity of the electrical shock.
Option A, hypothetical construct is not it since hypothetical construct is a variable which could be explained but hardly observed. In this case, hypothetical construct is more suitable to the degree of pain (extremely painful, mild shock and other)
Option C, mediating definition is the mediator variable between a dependent and an independent variables; in this case is not applicable
While Option D, conceptual definition give the definition of a certain concept. For example the definition of concept of pain.
Therefore the best answer for this is B, operational definition since it focus on how to measure the intensity of the electrical shock
Answer:
I believe it is the Vanir
Explanation:
A Temporal Investigation of Crash Severity Factors in Worker-Involved Work Zone Crashes: Random Parameters and Machine Learning Approaches:
Reason:
In the context of work zone safety, worker presence and its impact on crash severity has been less explored. Moreover, there is a lack of research on contributing factors by time-of-day. To accomplish this, first a mixed logit model was used to determine statistically significant crash severity contributing factors and their effects. Significant factors in both models included work-zone-specific characteristics and crash-specific characteristics, where environmental characteristics were only significant in the daytime model. In addition, results from parameter transferability test provided evidence that daytime and nighttime crashes need to be modeled separately. Further, to explore the nonlinear relationship between crash severity levels and time-of-day, as well as compare the effects of variables to that of the logit model and assess prediction performance, a Support Vector Machines (SVM)
What is meant by machine learning approach?
Machine Learning is an AI technique that teaches computers to learn from experience. Machine learning algorithms use computational methods to “learn” information directly from data without relying on a predetermined equation as a model.
Learn more about random parameter approach:
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