Which of the following best describes the limitation of generalizability across people?

The concept of generalizability across people refers to the extent to which research findings can be applied to a broader population based on the sample studied. B highlights the importance of assessing the representativeness of the sample used in a study. When a sample accurately reflects the larger population from which it is drawn, researchers can confidently generalize their findings to a wider audience.

For instance, if a study is conducted on a homogenous group that does not represent the diversity found in the general population, the results may not accurately indicate the behavior or attitudes of others outside that group. This is crucial in social psychology, where understanding how different demographics may react or behave is important for drawing valid conclusions.

On the other hand, the other options, while they address aspects of research and individuals, do not directly encapsulate the concept of generalizability to the same extent. Simply accounting for variability among individuals doesn’t directly relate to how those individuals relate to the broader population. Likewise, determining the potential impacts of cultural differences is important, but it doesn't directly measure how well a sample represents the larger population. Assuming all participants come from similar backgrounds would actually undermine the generalizability of the findings, as it fails to acknowledge the variety of influences that might impact behavior across