DDI Assessment: Manager Ready Simulation and How to Prepare

DDI Assessment: Manager Ready Simulation and How to Prepare

If you have been invited to a "DDI assessment", you are almost certainly being considered for a leadership role or a leadership programme. DDI does not run the classic timed numerical and verbal tests that many graduate schemes use. Its assessments are mostly simulations: you play a manager inside a fictional company, and trained assessors judge what you actually do.

This guide explains who DDI is, how the Manager Ready simulation works according to DDI's own material, which competencies are typically scored, how DDI's behavioural interviews fit in, and how to prepare. It also includes practice items in the style of the decisions you will face.

Who Is DDI?

DDI stands for Development Dimensions International, a leadership consultancy that cites more than 50 years of research in leadership selection and development. It is best known for three things:

• Leadership simulations such as Manager Ready (frontline leaders) and Leader3 Ready (emerging executives preparing for senior roles);
• Targeted Selection, its behavioural interviewing system;
• Leadership development programmes, often linked to the same competencies as the assessments.

DDI says it brought the STAR method to market in the 1970s. If you have ever prepared STAR answers for an interview, you have already met one of DDI's ideas.

Which DDI Assessments Might You Meet?

DDI's leadership assessment range covers several tools. The ones candidates most often encounter:

Assessment	Who it is for	What you do
Manager Ready	Current and future frontline leaders	Day-in-the-life simulation in a fictional company
Leader3 Ready	Emerging executive leaders	Immersive business simulation plus inventories of leadership style and motivations
Executive assessment	Senior leaders	Used for executive selection and succession decisions
Leadership Skills Insights	Existing leaders	Development tool showing strengths and growth areas, with group data for HR
360 feedback	Existing leaders	Ratings from manager, peers and team

Personality questionnaires and potential assessments can be added. For a first-line manager role, Manager Ready is the most likely, often followed by a Targeted Selection interview.

How the Manager Ready Simulation Works

DDI describes Manager Ready as an immersive, competency-based leadership simulation that evaluates the readiness of current and future frontline leaders. Based on DDI's solution overview, the flow is roughly:

1. A short video overview that explains the fictional company and what is expected of you.
2. A fully virtual simulation in which you take on a leadership role and work through more than 30 realistic scenarios, from coaching and conflict to decision-making.
3. An interface that looks like a workplace dashboard, with areas for meetings, tasks, messages and reminders, and a visible timer. You respond in writing, and DDI's sample screen also shows an option to switch to a voice response.
4. Scoring by certified assessors, who rate your responses against the competencies the employer selected.
5. A report with your strengths and development priorities, and sometimes a feedback session with a DDI coach or an internally trained coach.

It is effectively a virtual assessment centre and rewards the same behaviours as an in-person one. Our general guide to assessment centres covers the exercise types in more depth.

Integrity safeguards. DDI states that Manager Ready discourages unauthorised AI use through timed exercises, copy-and-paste restrictions, a required full-screen mode and real-time alerts. Write your own answers.

Competencies DDI Measures

DDI says Manager Ready can measure up to 15 competencies, tailored to the organisation. Its overview lists a standard set that includes:

• Coaching
• Decision Making
• Delegation and Empowerment
• Guiding Interactions
• Influencing
• Managing Relationships
• Planning and Organizing

Optional competencies include Customer Focus, Facilitating Change, Driving for Results, Driving Innovation, Building Partnerships, Business Savvy, Execution and Managing Conflict.

If the job advert or invitation names competencies, those are your preparation map. "Guiding Interactions" is particularly DDI-specific: it is about how you run a conversation so that the other person feels heard and leaves with a clear outcome, not only about what you decide.

Practice Questions

The items below are our own, written in the style of decisions a frontline leader faces in a simulation. In a real DDI exercise you usually write a free-text response rather than choosing A to D, so after each answer we also note what a strong written response would contain.

Practice question 1

A team member, Sam, has missed two deadlines this month. Sam was previously reliable. A colleague tells you Sam "seems distracted". What is the best first step?

A. Send Sam a written warning so the issue is documented. B. Arrange a private conversation to ask how things are going and discuss the missed deadlines. C. Reassign Sam's work to a colleague until performance improves. D. Wait another month to see whether the pattern continues.

Answer: B. A previously reliable performer with a sudden change needs a conversation first. B addresses the performance issue directly while leaving room to discover a cause. A escalates too fast, C removes responsibility without understanding the problem, and D lets the issue grow. A strong written response would state the facts (two deadlines), ask an open question, listen, and agree a concrete next step and follow-up date.

Practice question 2

You arrive on Monday to five items. Which do you handle first?

A. A request from marketing to review a brochure by Friday. B. An email from a customer saying their order, due today, has not arrived and they are considering cancelling a large contract. C. A reminder that team appraisals are due in two weeks. D. A colleague asking for your input on next quarter's team outing.

Answer: B. It is urgent (due today) and high impact (a large contract at risk). The others are either not urgent (A, C) or low impact (D). In a simulation, briefly say why you prioritised as you did; assessors score reasoning, not only the outcome.

Practice question 3

Two team members disagree about how to split a project, and the discussion has turned personal in a team chat. What is the best approach?

A. Post in the chat that you will decide the split yourself, and do so. B. Ignore it; adults should sort out their own disagreements. C. Ask both to move the conversation out of the group chat, meet them together, focus on the project goals and agree a split with them. D. Side with the more experienced colleague to resolve it quickly.

Answer: C. It removes the conflict from a public space, keeps the focus on the work and involves both people in the solution, which is what managing conflict and guiding interactions look like in practice. A may be needed later if they cannot agree, but as a first move it skips their input.

Practice question 4

Your manager asks you to roll out a new process your team will dislike because it adds a step. What is the most effective way to introduce it?

A. Email the new process with a deadline and no further explanation. B. Explain why the change is needed, ask for concerns, address what you can and agree how you will review it after a few weeks. C. Tell the team you disagree with it too, but you have to follow orders. D. Delay the rollout until the team is less busy.

Answer: B. It explains the reason, involves people and builds in a review, which supports influencing and facilitating change. C undermines leadership and the organisation; D avoids the task.

Practice question 5

A strong performer asks to take on more responsibility. You have a small reporting task that you normally do yourself every week. What is the best response?

A. Delegate the reporting task with a clear brief, explain the standard expected and agree check-in points. B. Say yes but keep doing the task yourself in case they make mistakes. C. Tell them to wait for the next appraisal cycle. D. Give them the task without instructions so they can show initiative.

Answer: A. Delegation with clear expectations and support is the textbook behaviour for delegation and empowerment. D is delegation without guidance, which often sets people up to fail.

Practice question 6

Written prompt: "Reply to Jordan, who asks why their holiday request for the busiest week of the year was declined."

What a strong answer contains: acknowledgement of Jordan's disappointment; the business reason in one or two sentences; an alternative (other dates, or part of the week if cover can be found); an invitation to talk; a warm, respectful tone. Weak answers either apologise without explaining or explain without any empathy.

Practice question 7

Written prompt: "You have 20 minutes before a meeting with your manager. Summarise the three biggest issues in your inbox and what you propose."

What a strong answer contains: three issues ranked by urgency and impact, one line on each issue's consequence if ignored, a concrete proposal for each, and what you need from your manager. Assessors in simulations like this look for structure and judgement, not long text.

Targeted Selection Interviews

Many organisations that use DDI also train their interviewers in Targeted Selection, DDI's behavioural interviewing system. The principle is that past behaviour predicts future behaviour. Interviewers ask for specific examples linked to the role's competencies, often starting with "Tell me about a time when", and probe until they have a full STAR: the situation or task, the action you took and the result.

Practical implications:

• Prepare two examples per competency in the advert, from different contexts.
• Expect follow-up questions: "What exactly did you say?", "What did you do next?", "How did you know it worked?"
• Talk about what you did, not what "we" did.

Our guides to STAR method interview questions and situational interview questions give worked examples.

Scoring and Results

DDI reports competency ratings and benchmarks: the overview shows scores per competency compared against company, industry and global benchmarks. DDI also claims, based on its own data, that candidates scoring in the top 75% on Manager Ready are seven times more likely to excel on the job than low scorers. That is a vendor statistic, but it shows how seriously some employers take the results.

There is no published pass mark. The employer decides how the ratings are used: as one input alongside interviews in hiring, as a promotion criterion, or purely for development. For internal programmes, you often receive a report and development guide; for external hiring, you may only hear the outcome.

Common Mistakes

Treating it like a quiz. In a simulation the assessor reads your words. One-line replies to an upset employee score poorly even if the decision is right.

Solving everything alone. Good frontline leaders involve their team. Responses that never ask, delegate or consult look like a strong individual contributor, not a manager.

Ignoring the clock. With more than 30 scenarios, spending too long polishing one email means others get rushed or skipped.

Missing information. Facts are often spread across messages, attachments and reminders. Skim everything first so you do not contradict something you had not read.

Being vague. "I would talk to them" is weaker than "I would book 30 minutes today, ask how they are, share the two missed dates and agree a plan."

A Two-Week Preparation Plan

1. Days 1 to 2: decode the invitation

List the competencies named in the advert or invitation, the format (simulation, interview, questionnaire) and the deadline or booked slot.

2. Days 3 to 5: build your examples

For each competency, write two STAR examples from your own experience. These feed both the interview and your instincts during the simulation.

3. Days 6 to 8: practise prioritisation

Do two in-tray style exercises under time pressure. Our in-tray exercise guide has a worked example and a prioritisation method.

4. Days 9 to 11: practise written people responses

Write short replies to tricky messages (a complaint, a refused request, a conflict). Check each for acknowledgement, reason, action and follow-up.

5. Days 12 to 13: rehearse the interview

Ask someone to interview you with "Tell me about a time" questions and push for detail.

6. Day 14: logistics

Test your device, browser and connection, close other applications (full-screen mode is required) and plan an uninterrupted block.

Practical Tips

• Take the simulation on a laptop or desktop with a reliable connection, in a quiet room.
• Book your slot early if the invitation uses a scheduler; leave time in case of technical issues.
• Keep paper and a pen to note names, deadlines and links between messages.
• Write in plain, polite, professional language as if you were really the manager.
• If you need adjustments for a disability, contact the employer before your slot.
• For broader preparation across tests and interviews, see our complete training package.

Frequently Asked Questions

What is the DDI Manager Ready assessment?

Manager Ready is a DDI simulation for current and future frontline leaders. You work inside a simulated company, handling messages, meetings and tasks, and certified assessors score how you handle them against leadership competencies.

Is the DDI assessment used for hiring or for development?

Both. DDI says Manager Ready reports support development, selection and workforce planning, and that results can inform hiring and promotion decisions. Your invitation should say which purpose applies.

How long does a DDI simulation take?

It depends on how the employer has set it up and which competencies are measured. Your invitation or scheduling email states the time; block out more than you think you need and work somewhere quiet.

Can I use AI tools during a DDI simulation?

No. DDI says it uses timed exercises, copy-and-paste restrictions, required full-screen mode and real-time alerts to discourage unauthorised AI use. Write your own responses.

What is Targeted Selection?

Targeted Selection is DDI's behavioural interviewing system. Interviewers ask about specific past situations linked to job competencies and record them using STAR: Situation or Task, Action and Result.

About the author

Ingmar van Maurik is a specialist in test and interview preparation who helps candidates perform better in recruitment processes.

References

DDI, Manager Ready solution overview: https://media.ddiworld.com/resources/manager-ready-solution-overview.pdf DDI, Leader3 Ready solution overview: https://media.ddiworld.com/resources/l3-ready-solution-overview.pdf DDI, Leadership assessment: https://www.ddi.com/solutions/leadership-assessment DDI, Behavioral interviewing (Targeted Selection): https://www.ddi.com/solutions/behavioral-interviewing DDI, Manager Ready: https://www.ddi.com/mr