Cornelia used the student directory at her school to select a random sample of 100 students for her laboratory experiment on decision making. she then used a quota matrix containing the variables she felt would most likely influence decision making, and assigned people within each matrix cell alternately to the experimental and control groups. what method of selecting subjects was used?

Probability sampling

Explanation:

Probability Sampling is a sampling technique in which a sample from a larger population is chosen using a method based on the theory of probability. For participants to be considered as part of the probability sample, they must be selected using a random selection.

The most important characteristic of probability sampling is that everyone in the population has an equal chance of getting selected.

In this example. Cornelia used the directory at her school and RANDOMLY selected 100 students. Then, she assigned people ALTERNATIVELY (and therefore RANDOMLY) to each matrix cell to conform her experimental and control groups.

Since she selected her sample at random and then she assigned the persons to each of the groups in a random way, we can conclude that this is an example of Probability Sampling

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