The methodology involved using simulations based on linear mixed-effects modelling of four plot based surveys.
mSurvey's business model entails employing mobile phone based surveys to fill a gap in key African markets for personal and consumer data.
In the model based on survey data, individuals were dichotomised into ever and never hospitalised groups according to their survey responses.
Whenever we estimate a model based on survey data we need to, in general, worry about three main issues that have the potential to bias our parameter estimates: sample selection bias, endogeneity of some of the covariates, and unobserved heterogeneity.
(See, for example, "Coverage Bias in Traditional Telephone Surveys of Low-Income and Young Adults"). Prof. Elliehausen's decision to then build a "psychological model" based on these surveys raises even more questions.
Risk perception estimates are produced using a statistical model based on national survey data (n = 9,217).
Structural equation modeling technologies are employed to evaluate the research model based on a survey questionnaire.
This paper presents a fuzzy logic computational model based on this survey to measure and classify the performance of Sudanese universities and academic staff, which includes computation of criteria weights and overall evaluation of Sudanese universities and academic staff using AHP and TOPSIS techniques.
Attempts have been made to develop system dynamics model based on the survey data and historical data, to understand the influence of the most important controlling parameters that decide the function of the system for evolving optimal strategies for integrated development of the system.
Takano and Kimata (2013) reevaluated the fault-slip model based on geodetic survey data and found that the coseismic horizontal displacement was 4.2 7.3 m in the central part and 2.0 3.8 m in and around the southern end, which also supports our assumption.
Methods: We developed a multilevel model based on national survey data on primary cooking fuel.
