Worked example 1
The table below shows data on religious affiliation in Great Britain. Using the data, calculate the percentage point decrease in the proportion of people identifying as Christian between 1983 and 2018. [2 marks]
Show solution outline
Step 1: Identify the percentage of Christians in 1983. From the table, the proportion of people identifying as Christian in 1983 was 66%.
Step 2: Identify the percentage of Christians in 2018. From the table, the proportion of people identifying as Christian in 2018 was 38%.
Step 3: Calculate the percentage point decrease. Percentage point decrease = Starting percentage - Ending percentage 66% - 38% = 28 percentage points.
Answer: The proportion of people identifying as Christian in Great Britain decreased by 28 percentage points between 1983 and 2018. Sociologists like Steve Bruce use such statistical evidence to support the secularisation thesis, arguing it demonstrates a clear decline in the social significance of traditional religion.