The logic behind samples and populations is that
A)measuring the population is usually the desirable approach.
B)the scores in a sample can be used to estimate the scores we would expect to find if we could measure a population.
C)it is much less expensive to measure a sample than to measure an entire population.
D)there is no need to measure an entire population because any sample produces the same results.

Question

Quizplus · Accepted Answer

Samples are used to estimate the characteristics of a population, as it is often impossible or impractical to measure the entire population. By measuring a representative sample, we can make inferences about what the population looks like. This is the logic behind using samples in research. Choice A is not always true, as measuring the entire population can be difficult in some cases, while choice C is true but not the primary reason for using samples. Choice D is incorrect, as sample results can be influenced by the specific individuals or items selected, and may not be the same if a different sample is chosen.

The Logic Behind Samples and Populations Is That