... opportunity sample of 20 grammar school girls aged 12-13 was used, in two groups as part of our independent measures design. One group was shown a video of a staged argument between a girl and a teacher, and told they were taking part in a psychology experiment. They were then asked 10 questions, one of which was leading, relating to the scene they had watched. The second group witnessed the argument taking place in front of them and the girls were not aware they were part of an experiment. They were then told, and asked the same set of questions. Both sets of participants were fully debriefed. The independent variable was the environment, and the dependant was whether participants were correct in their answers. The results obtained showed recall in situations of low ecological validity was slightly higher; these were analyzed using the Mann-Whitney U test in order to determine the level ...

See this essay or coursework document in full right now