Spanish Abstract: El desempeño de las encuestas electorales en la Argentina alcanzó en 2019 su punto más bajo desde la recuperación de la democracia en 1983. Los errores fueron mucho mayores que los observados en los últimos años en democracias maduras, donde se habla de una crisis de este...

This paper focuses on the development of both failure prediction models on a paired sample and a random sample of small and medium-sized firms with head offices located in the region of Castilla y León (Spain), in order to prove if the predictive power of the developed models is affected by the...

The estimation of the sample size is a crucial part of the planning process of a survey and it can be accomplished in different ways, some of them require information not available or that may be obtained with a substantial cost. The estimation of the sample size can be done by using the design...

Qualitative scales formed by linguistic terms are used by different disciplines to determine preferences and different aspects of individuals' lives. Although it is usual to assign numbers to the response categories of scales, it is not suitable when individuals perceive different proximities...

Today, improving brand loyalty is an important focus for organizations. However, one way to achieve this is to improve consumer satisfaction and brand attachment. Thus, the purpose of this study is to explore the effects of consumer satisfaction and emotional brand attachment on brand loyalty....

In the estimation of proportions using simple random sampling, the maximum value of the variance can be used to compute the sample size when there is no information of the variable of interest. We extend this result to the estimation of proportions under two-stage cluster sampling with equal...

In stratified sampling there are designs with one unit selected per stratum or when one is willing to make estimations on unplanned domains with one unit in some strata. In these cases the variance is generally estimated by the collapsed strata method, which requires identification of the strata...

In the estimation of proportions using simple random sampling, the maximum value of the variance can be used to compute the sample size when there is no information of the variable of interest. We extend this result to the estimation of proportions under two-stage cluster sampling with equal...

In stratified sampling there are designs with one unit selected per stratum or when one is willing to make estimations on unplanned domains with one unit in some strata. In these cases the variance is generally estimated by the collapsed strata method, which requires identification of the strata...