Aresearcher studies the impact of cell phone use during class lectures on college students’ exam scores. whether the results of this study us to understand the relationship between cell phone use during class lectures and work performance in real-life institutions is a question of the original research hypothesis. study confounds. internal validity. external validity.

External validity.

Explanation:

Whether the results of this study help us to understand the relationship between cell phone use during class lectures and work performance in real-life institutions is a question of external validity. Whether the conclusions of a scientific study can be applied to other institutions and other activities is a matter of external validity. External validity is the generalization of the results of a scientific study to other contexts.

    racial conflict and discrimination has existed ever since man learned to kill with rocks and bones. these conflicts arose from disputes between territory, power, wealth, religion, or simple difference. some of the most infamous racial disputes include slavery, the holocaust, and the civil rights movement.

    these listed disputes often resulted in casualties from all sides. riots, wars, imprisonment, and lynching are all commonly associated with racial conflict on severe levels.

      however, racism is an improving issue in recent decades. people are being more accepting and welcoming of diverse populations. though, the world isn't perfect and it will take much more time, if ever, until the world is rid of racism.

can you explain it better