You pour water from a short, fat glass into a tall, thin gla…

You pour water from a short, fat glass into a tall, thin glass.  You ask a child if there is more water in the thin glass than there was in the fat glass.  The child says, “No.  The amount of the water has not changed.”  The child has attained at least the _____________ stage of cognitive development.

A company wants to assess the effects of a new training prog…

A company wants to assess the effects of a new training program in increasing job knowledge.  All of its employees are assigned to either one of three groups.  One group receives the training from a teacher, one group receives training on computer diskette, and one group receives no training at all.  Afterwards, the employees take a job knowledge test.  The appropriate test to analyze this data would be the