成就测验区别于智力、人格测验的地方在于成就测验是对被试相对()的测量。

辨析题：要求对所给命题或观点进行辨别、分析，观点正确，言之成理。

凡是亲眼所见的都是对客观事实的真实反映。

有一组关于观众看广告片时间的统计数据，请计算这组数据的方差(写出计算过程)。

被试S1S2S3S4S5

观看时间(分钟)11.216.213.312.118.2

Part B

Directions: Write an essay of 160-200 words based on the following information. (20 points)

Write an essay based on the following chart. In your writing, you should 1) interpret the chart and 2 ) give your comments.

You should write at least 150 words.

Write your essay on ANSWER SHEET 2. (15 points)

简述心理测验中误差的来源。

简述可引起无意注意的因素有哪些。