required subjects

Objective Sample size formulae for two and more treatment groups to calculate the required number of subjects with repeated measurements design is given.

目的给出计算两个和多个处理组重复测量设计所需样本含量的公式。

This meant they required two or fewer of the seven subjects. Five schools received a top grade for requiring six subjects.

这意味着他们只要求七门课程中的两门或更少。有5所学校对六门课程做了要求，获得了最高分。

All the subjects were required to fill in a questionnaire.

所有受访者皆须填写一份问卷调查.

As a high school required subjects of information technology courses, the information technology basis plays a decisive role to develop the ability of students.

高中《信息技术基础》作为高中信息技术课程的必修科目，对高中生信息素养能力的培养起到了决定性的作用。

Quantitative research together with qualitative research is adopted in this thesis. The 173 participants involved in this study are non-English majors from North China Electric Power University. All of the subjects are required to finish a questionnaire and then 20 students take part in an interview.

本文采用定量和定性研究相结合的方法，对173名华北电力大学的大二非英语专业的学生进行了问卷调查，并对其中的部分学生进行了访谈。