Teach Campaign Evaluation with a Decision Tree, Not a List of Metrics
A practical teaching approach that helps learners reason from campaign evidence instead of memorising metric definitions.
Learners may remember metric definitions yet still feel unsure what to do when a campaign changes. A decision tree teaches them to move from observation to diagnosis and then to a proportionate action. Amar Ajnalkar, digital marketing trainer and consultant, recommends using realistic scenarios with incomplete information so participants practise judgment.

Begin with the outcome
Give learners a short campaign case with a stated goal, time period, channel context and a small set of measures. Ask whether the result is complete and whether the comparison is fair before interpreting it.
Build branching questions
- Did traffic or delivery change?
- Is the destination working on mobile?
- Did enquiries reach an owner?
- Are leads suitable for the service?
- Did another business or market factor change?
Each branch should suggest what evidence to check next, not force a single answer from limited data. Include a path where the correct conclusion is “not enough evidence yet.”
Assess reasoning, not vocabulary alone
Ask learners to identify the observation, distinguish assumptions and explain why their proposed action is proportionate. Use a rubric for evidence use, customer impact, measurement quality and clarity.
Debrief alternative decisions
Invite learners to compare different interpretations and state what additional information would change their view. This makes uncertainty part of professional judgment instead of a reason to guess.
Connect the exercise to the practical exercise framework and the leading-and-lagging indicators guide.
A decision tree helps learners connect data to action while recognising when the evidence is too weak for a confident conclusion.