AVIATION RESEARCH METHODS
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include measurement and generally these are trustworthy. In this aspect, the research
methodology itself justifies the stated research philosophy. In the research methodology an
observational statistical analysis has been done of the commercial passenger services during the
time span of 1990 to 2014 (Ekman & DeBacker, 2018). Thus, in this context, the data has been
gathered through appropriate observation which justifies the current research philosophy. Also,
the current study has clearly mentioned the aim of it. The authors have said that “Aim of the
study was to examine the impact of MTOW, phases of flight and aircraft damage on the
survivability of aircraft occupants in commercial passenger aircraft accidents”. This part again
justifies the positivism research philosophy of the study (Davies & Fisher, 2018). Also, a set of
research hypothesis has been included in this study which is justifying the positivist research
paradigm nature of this study.
For conducting the research, the authors Chang and Yang (2011), has utilized both of the
qualitative and quantitative research of method. In this case, first the authors have designed the
questionaries and the population to whom the research question will be asked. For this research,
the population was passengers of the China Airlines flight CI-120. The questionaries were both
types of quantitative and qualitative. The quantitative questionaries utilized the Likert-scale with
the range of 1 to 5. The quantitative questionaries were used for getting the perception of the
passengers on the safety of the cabin. The qualitative questionaries were used for taking an in-
depth interview (McGuirk & O'Neill, 2016) of the flight passengers for investigating the process
of emergency evacuation (Chang & Yang, 2011). Four types of categories have been used in this
case which were the biobehavioral, procedure, environment and configuration. For the analysis
of gathered data factor analysis has been used by the authors. The factor analysis has been used
for the data analysis for discovering the meaningful pattern (Bandalos & Finney, 2018) within
cabin related safety issues and for summarization of important information. Also, principle
component analysis has been also done for this research.
Authors Ekman and DeBacker (2018), have utilized observational statistical analysis for
conducting this research. Here, for performing this research the authors have used specific
timespan which is 1990 to 2014. For collection of the data secondary research method has been
utilized by the authors where they have collected the data from ICAO accident database
(Walliman, 2017). Some specific criteria have been also followed for collection of the data

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