15th February 2024

A new cognitive behavioural therapy (CBT) technique was introduced to aid in smoking cessation.

A new cognitive behavioural therapy (CBT) technique was introduced to aid in smoking cessation. Researchers are attempting to see if this intervention changed the opinions of smokers to consider smoking cessation. A group of smokers were identified and were asked if they had considered smoking cessation. The participants’ consideration of smoking cessation was evaluated after three months of CBT. 

Which of the following statistical tests should be considered to identify any significant differences?