July 10, 2024

NPS Research in Product Development

In our previous article about product research, we mentioned our favorite combination of research practices: NPS —> in-depth interview —> SCI. It works great for small and medium-sized product teams, as it’s fast and easy to set up. Let’s discuss the first element of the chain, the NPS (Net Promoter Score).

NPS is an incredibly simple research tool; it consists of just one question: “On a scale of 0 to 10, how likely are you to recommend our business to a friend or colleague? Despite its simplicity, the results are often misunderstood. Paulina Bynova, JetStyle’s CMO, shares some valuable insights about how to use it for your benefit: 

  1. Results of NPS are relevant only when processed continuously. 

One static number says nothing about your audience’s attitude toward the product. The best approach is to measure NPS in various audience groups, in different periods. If it grows, then you’re doing well. If it declines, you should find the problem. 

  1. The quality of the sample matters. 

I’ve witnessed situations when the NPS poll emerged after communication with tech support managers. Why would anyone research unhappy users (we suppose they are unhappy because they had to contact support)? The best idea is to research on different segments of the audience separately or ensure the representative sample. 

  1. Timing is key. 

Think of the best time to ask your clients about their opinion of the product. For example, it could be after they perform a target action, e.g. ordered your service. At the same time, don’t forget to collect the opinions of those who only use your free version as well. 

The most frequent mistake here is to send the NPS survey right after registration or during onboarding. If your product has a long life cycle, take your time and let your customers get enough experience with the product. 

Be careful about how often you send out the survey. If you survey the same users too often, don’t be surprised they are increasingly unhappier each time you contact them. 

After you get your NPS results, you need to understand your next steps. How does your product benefit from this research? 

Apparently, the next step is to figure out why the NPS is low, or what you could do to improve it. What problems motivate your users to give you low scores? 

Apart from the main indicator you get after the research, you have access to all users IDs and the scores they gave your product. You may use the data to launch a series of in-depth interviews; this is the next stage of our research flow for product teams. We’ll cover it in our next article. To be continued! 

FAQ
What is NPS and why do product teams use it?
NPS (Net Promoter Score) is a simple metric based on one question: how likely users are to recommend a product. Product teams use it as a starting point to understand overall user sentiment and identify segments that require deeper qualitative research.
Why is a single NPS score not enough to understand user satisfaction?
A standalone NPS number has little meaning without context. NPS becomes valuable only when measured continuously, across different user segments and time periods. Trends matter more than absolute values — growth signals improvement, decline signals a problem that needs investigation.
How does sample quality affect NPS results?
Poor sampling can completely distort results. For example, surveying users right after contact with tech support often biases results toward dissatisfaction. NPS should be collected from representative audience segments or analyzed separately by user groups to avoid misleading conclusions.
When is the best time to send an NPS survey?
Timing depends on the product lifecycle. NPS should be sent after users have gained enough experience with the product — for example, after completing a key action or using the service for some time. Sending surveys too early, such as during onboarding, often produces unreliable data.
What should teams do after collecting NPS results?
NPS is not the end of the research process. The real value comes from using scores and user IDs to identify detractors and promoters and then launching in-depth interviews. This allows teams to understand why users give certain scores and what actions can improve the product.
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