Which two types of experiments are conducted in a natural setting (eg. a mall, BTS station, school, cinema)?

Which two types of experiments allow researchers to control the variables (eg. using actors to create a situation, giving instructions to participants)?

Which type of experiment is most likely to have proper informed consent and be more ethical?

In which type of experiment do the experimenters have no control over the situation or variables?

Choose the type of experiment that has the highest reliability.

Which type of experiment is conducted in a controlled location where researchers could affect the environment?

Choose the type of experiment that has the highest ecological validity.

The researchers went to a school and compared student's grades in a class where the teacher used technology and one that did not to see if there was a difference.

The researchers got two students to be confederates (actors) and act out a fight in the middle of the school canteen. They quietly watched form a corner to see count how many people went to help.

The researchers invited a few students from each year group to a quiet office room to do a personality test. They made sure to get equal number of boys and girls. The students were given the same amount of time to complete the test.