A technique Tarkan uses for improving cooperation within his fifth-grade class involves students working together in small, ethnically diverse groups on a mutual project. Tarkan is using the: jigsaw classroom technique. rule of reciprocity. door-in-the-face technique. Robbers Cave strategy.

Within the hierarchy of the federal bureaucracy, the cabinet is higher than independent agencies. higher than the vice president. lower than executive departments. lower than administrators and staff.

Jamie is conducting a study of hyperactive children. he recruits two children identified by teachers as hyperactive and takes a detailed history by interviewing the child and the child's parents over a period of several days, looking for patterns in the child's early experiences that may have contributed to the child's hyperactivity. jamie's research plan is referred to as the

Enement apartments at the beginning of the twentieth century were