Test De Técnicas De Muestreo

El proceso de creación de una muestra mediante bola de nieve se basa en utilizar la red de contactos existente para reclutar participantes adicionales. En este método, los participantes iniciales reclutan a otros participantes que conocen y que pueden cumplir con los criterios de selección necesarios para la muestra. Esto permite ampliar la muestra de manera rápida y eficiente, aprovechando las conexiones existentes entre las personas.

Probabilistic sampling refers to a method of selecting a sample from a population in which each individual has a known probability of being included in the sample. In order to conduct probabilistic sampling, it is necessary to have a sampling frame, which is a list or representation of the entire population from which the sample will be drawn. Without a sampling frame, it would be impossible to determine the probabilities of inclusion for each individual and thus conduct a probabilistic sampling. Therefore, the statement in the answer is correct.

The correct answer is "Probabilísticas". When we talk about techniques that use chance or randomness in their development, we refer to probabilistic techniques. These techniques rely on probability theory and statistical analysis to make predictions or decisions based on uncertain or random events. They involve calculating probabilities and making inferences based on these probabilities. Non-probabilistic techniques, on the other hand, do not rely on probability theory and instead use other methods such as expert judgment or deterministic models.

En el muestreo por cuotas, las variables influyen en el dato que queremos medir. Esto se debe a que en este tipo de muestreo se seleccionan a los participantes de acuerdo a ciertas características o variables preestablecidas, como la edad, el género o la ubicación geográfica. Estas variables influyen en el dato que queremos medir porque nos permiten obtener una muestra representativa de la población objetivo, asegurando que se incluyan diferentes grupos y subgrupos en proporciones similares a las existentes en la población total. Por lo tanto, es cierto que las variables influyen en el dato que queremos medir en el muestreo por cuotas.

The given correct answer is "Muestreo estratificado". This technique involves dividing the entire population into different subpopulations or strata. This helps ensure that each stratum is represented proportionally in the sample, which can improve the accuracy and representativeness of the results.

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El muestreo sistemático es un método de selección de muestras en el cual se sigue un patrón preestablecido. En este caso, la selección de la muestra depende de la experiencia del investigador, lo que implica que el investigador utiliza su conocimiento y criterio para determinar cómo seleccionar las unidades de muestreo de manera sistemática. Esto asegura que la muestra sea representativa y que se puedan obtener resultados confiables y válidos.

The correct answer is "Muestreo lineal" and "Muestreo exponencial". These are the two types of snowball sampling. Snowball sampling is a non-probability sampling method where initial participants are selected and then they refer other potential participants. In linear snowball sampling, participants are recruited in a linear manner, meaning that each participant refers only one other participant. In exponential snowball sampling, participants are recruited in an exponential manner, meaning that each participant refers multiple other participants. Both types of snowball sampling are used to reach hard-to-reach or hidden populations.

The use of convenience sampling is commonly seen in pilot studies and voluntary clinical studies. In pilot studies, researchers often use convenience sampling to gather preliminary data and assess the feasibility of a larger study. Similarly, in voluntary clinical studies, convenience sampling is used to recruit participants who are readily available and willing to participate. Both types of studies often require a smaller sample size and prioritize convenience over representativeness of the population.