Chapter 13 Discussed Research About Whether 12-1The DVD Shows a Household

Chapter 13 discussed research about whether 12-1The DVD shows a household object, while a voiceover says the object's name. According to the results, children learned significantly more words

A) if the children watched the video by themselves, compared with a control group that had no video.
B) if the parent taught the child the words, compared with the child learning the words from the video.
C) if the parent watched the video and interacted with the child, compared with the child just watching the video.
D) if the child was in the control group, without any video or teaching; their vocabulary actually increased as much as when children's parents taught them the words.