Question

3. Provide 5 examples of research studies with cross-sectional study design. What were the independent and dependent variables in each of these studies? Add references for each example.

4. Provide 5 examples of randomized controlled trials (RCTs). What were the independent and dependent variables in each of these studies? Add references for each example.

Answer 1

3.

Example 1 : A study to check for interest in high school extra curricular activities between the two genders boys and girls.

Dependent variable : no of students participating in extra curricular activities

Independent variable: sex of a high school student.

Example 2. a cross-sectional study can be conducted on working class males and females to check the shopping trend .

Independent variable : sex

Dependent variable : shopping trend

Example 3: a cross-sectional study can be conducted kids of age 8 to 14 to check for iron deficiency .

Independent variable: age

Dependent variable : iron deficiency

Example 4 : a cross-sectional study on males and females between to check openness to other religions .

Independent variable : gender.

Dependent variable : openness to other religions

Example 5 : Study to find the target buyer age group for a new phone .

Independent variable : age groups

Dependent variable : buyer's number in a age group.

4.

Example 1 : A study to check effect of studying in boarding school on grades among high school students. 100 Students are randomly divided into two groups . One group goes to boarding school for 1 year . Another group stays with parents. At the end of one year analysis is done on grade point .

Dependent variable : grade point

Independent variable: group .

Example 2. a study can be conducted on working class males to check the effect of sleeping peel on breathing problem by randomly dividing a sample of make population into two groups taking sleeping peel and not taking.

Independent variable : whether taking sleeping peel or not .

Dependent variable : breathing problem.

Example 3: a study can be conducted kids of age 8 to 14 to check for iron deficiency decrease with taking vitamin tablet. Randomly dividing a sample of kids into two groups.

Independent variable: taking vitamin tablet or not

Dependent variable : iron deficiency

Example 4 : a study to check openness to other religions on males and females who are going through particular program sketched by cultural society of the country to make people more friendly to others. A sample is divided into two groups , one recieving the program and others do not.

Independent variable : enrolled to the program or not.

Dependent variable : openness to other religions

Example 5 : Study to find sleeping with mobile phone near one's body affecting blood circulation.

Independent variable : randomly dividing two groups . One sleeps with mobile near body , other does not.

Dependent variable : blood circulation.