It may have been useful to determine if human type factors provided better explication of accidents under those conditions.
The researchers did not state that type of sample design employed. The sampling in this work is problematic as observed in the survey stage as the majority of the population did not return the questionnaire. While it was not stated the interview process produced high levels of non-response, and hence non-response error may introduce systematic errors, that may impact on later choices. For the data collection from the intersections again the sample design employed was not mentioned. The reader is informed that 274 intersections are chosen from 33 counties, there is no information on the population size or how the sample is procured. So that a proper critique of the sample designs appropriateness is difficult. However based on the researchers comments the sample size appeared inadequate for the research. The researchers noted that they were unable to assess the impact of type and location of lighting and this may have been because of inadequate sample size (Neal et al., 2008, p.39). Another weakness centered on critical assumptions that were made for which the researchers provided no empirical evidence. They decided that 150 feet was the cut off point for accidents no rationale was provided for that determination. Secondly even though they noted that for many of the night time accidents they were uncertain as to the cause but assumed that lighting was involved. It would seem prudent to provide greater empirical support for critical decisions in the study.
Data Analysis
Bayesian statistical analysis was employed to meet the research objectives. Several models were developed based on the variables of concern and the models tested using a hierarchical Bayesian modeling utilizing a Poisson distribution. The initial testing of the two models, one for day and the other for night, did not produce statistically significant results. After an adjustment of the models by the removal of some variables, and the reclassification of lighting as present or absent, they were able to determine that intersections with no lighting are 2.01 times more likely to have accidents than those with lighting. The researchers were unable to successfully assess the impact of other low cost measures....
In general, any business organization can help the homeless by contributing money or volunteers to local shelters and to promote the availability of jobs for those whose circumstances are mainly attributable to their inability to find steady work and income. Private Individuals Unfortunately comparatively few private individuals take the initiative to do anything to help the homeless, mainly because they underestimate how far even a little help goes. The simplest way
They should limit the number of teen passengers when their teenager drives beyond the number of safety belts in the car. It is also a good idea to choose an intermediate sized car or sedan instead of a high-performance sports car, SUV or pickup, which usually carry higher insurance premiums and higher death and theft rates (IIHS). As a Bill in the Legislature proposes, a new driver should spend double
Business (general) Please list sections according to instructions Exercise 1.1: Review of Research Study and Consideration of Ethical Guidelines Option 1: Stanford Prison Experiment Go to: http://www.prisonexp.org, the official site for the Stanford Prison Experiment. What do you think the research questions were in this study? List 2 or 3 possible research questions (in question format) that may have been the focus of this experiment. What happens when you put good people in an evil place?
German Influences on Texas Culture If one has lived in Texas for any length of time, they will realize immediately that the Texas culture is influenced by German culture in a number of ways. Modern day Texas culture would not exist as it does today if it were not for German influence. Today Texas culture can be described as a blending of German and Texas traditions. Though German culture is not
Batteries are common in individual household systems. Inverters could help, though their technology is not standardized. Automated demand response using smart meters with microclimate forecasting research is well funded (St. John). Building dedicated (express) feeders for larger PV systems with bidirectional voltage regulators is one response. Avoiding fixed capacitator banks and having the PV system absorb volt-ampere reactives are two other possible solutions (Katiraei and Romero Aguero 69-70). On
On a wider scale, the struggle of these immigrants would be familiar to many immigrants around the country. Many of them come to this country to contribute their talents and ideas. On a personal note, for example, my girlfriend's father Farouk is a West Indian immigrant from Trinidad & Tabago. After years of taking night classes, he earned his associate's degree in Electrical Enginnering. Today, Farouk is an engineer
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