quitzlet A researcher uses a video camera to record children as they play on a school playground. The researcher plans to carefully watch the videotape to count the children's helping behaviors. This researcher is conducting a: case study systematic observation. standardized test. multisource study.

Which of the following statements about imprisonment rates in the united states is true? the united states imprisons people at a higher rate than russia, mexico, or canada. the united states imprisons people at a lower rate than russia or south africa, but higher than israel. the united states imprisons people at a lower rate than russia, mexico, or canada. russia, south africa, and mexico each imprison more people than the united states.