IB skill practice

Use Spearman rank differences

Calculate Spearman rank correlation from squared rank differences.

Paper 1, Paper 2 5 marks Difficulty 3

Use Spearman rank differences - exam scenario

Confirm the modelling meaning first. For a training college rank-correlation study with \(n=10\) pairs and \(\sum d^2=14\), calculate Spearman's rank correlation coefficient. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.