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1.The efficiency of the teaching methods：questionnaire;Questionnaires can not only collect data but also ask questions like how does the teacher prepare for the lesson.

2.The relationship between crime statistics and immigration：qualitative observation;Qualitative observation is the systematic measurement of behavior characteristics

3.A case study on the victims of bullying in schools：qualitative observation;

4.The impact of education on obesity：interviews

5.How social processes influence patient behaviour：quantitative observation; it need to clearly define the categories and criteria of the observation in advance and need to know data

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1. questionnaire（Quantitative observation）

Reason： The answers are fixed and unified, and the receipt data can be effectively and simply obtained in the form of questionnaires
2. interviews where questions are asked and answers are recorded（Quantitative observation）
Reason：
Because every crime may have a different relationship with immigration, it is necessary to make a case-by-case analysis, such as observing characteristics, so as to effectively solve the problem

3. interviews where questions are asked and answers are recorded
Reason：
Every victim of school bullying has different problems and should be analyzed on a case-by-case basis
4. qualitative observation
Reason： concrete analysis of concrete problems

5：Use the observation(qualitative observation) Reason: This method allow us to observe characteristics behaviors or social interactions

# data[].attributes.body
The efficiency of the teaching methods

Qualitative observation: we can see students' results and know more satistics, through using the satistics or the lessons' atmosphere, students' reaction to see where the teaching methods are work or not on the students.

The relationship between crime statistics and immigration

Quantitative observation:  we can systematic see where there is a positive relation, negative relationship or no relation between these two factors.

A case study on the victims of bullying in schools

Survey:  We can ask students to fill in the questionnaires and ask them to answer. Through using the surveys to find out the victims and help those who are in need.

The impact of education on obesity

Physical science: we can simply ask them to check the BMI and weight to see how the education impact on education.

How social processes influence patient behaviour

Quantitative observation: we can see their changes like changing the values, norms  and see how society affect their behaviours.

# data[].attributes.body
Topic/ Research Question | Data Collection Technique(s) | Reason
The efficiency of the teaching methods |   |
The relationship between crime statistics and immigration |   |
A case study on the victims of bullying in schools |   |
The impact of education on obesity |   |
How social processes influence patient behaviour |   |