This research was developed with the aim of determining the effect of conducting virtual laboratories with respect to the subjective evaluation of professors and the standardized tests of a Colombian higher education institution. To achieve this objective, an explanatory descriptive study with a quasi-experimental, field, and longitudinal design was proposed to execute a comparative analysis between the conduct of face-to-face and virtual laboratories in the selected higher education institution. The research was developed between the periods 2019-1 and 2020-1, being the first period when face-to-face laboratories were taught, meanwhile the second period when the students were assisting classes through virtual platforms. The results of the research process indicate that there is a dependency between grades corresponding to 10% and 20% in each of the three periods for the 2019-1 semester and the 2020-1 semester, and it is evidenced that the number of students in the insufficient category in the 20% test decreased. Another representative finding is that the scores of professors' subjective evaluations are consistent with the results within the standardized tests of the university under study. It is then concluded that the implementation of various virtual spaces for teaching allows knowledge development process to be better, where the opportunity is provided to a large number of resources or processes that could be expensive for universities in low-income countries. Similarly, virtual classrooms open the opportunity for more students, especially the ones from the most remote locations to be able to participate in the classes.

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The present investigation is done through processes that permit to find the value of the unknown term "R". The procedure for data collection disposed the transmitter and the receptor two meters apart, measuring the value of the parameter RSSI a total of twenty times; repeating this process every two meters, until the forty meters. The procedure for data collection disposed the transmitter and the receptor two meters apart, measuring the value of the parameter RSSI a total of twenty times; repeating this process every two meters, until the forty meters. In relation to the statistical treatment of the data, there were applied dispersion measurements or variability of the sample, such as the sample's variation, the standard deviation of the sample and the error. The results established the existence of the relation between the two principal variables involved in the study. Potency (dBm) as independent variable and the distance as dependent variable, in conclusion, this is prove that the bigger the distance between the transmitter and the receptor is, the less power it expresses.