Voices: the CMB Blog

By Chris Neal and Dr. Jay Weiner

As I wrote in last week’s post, we recently conducted an analysis of mobile wallet use in the U.S. To make it interesting, we used unlinked passive mobile behavioral data alongside survey-based data.In this post, I’ve teamed up with Jay Weiner—our VP of Analytics who helped me torture analyze the mobile passive behavioral data for this Mobile Wallet study—to share some of the typical challenges you may face when working with passive mobile behavioral data (or any type of passive behavioral data for that matter) along with some best practices for dealing with these challenges:

1. Not being able to link mobile usage to individuals. There’s a lot of online passive data out there (mobile app usage ratings, web usage ratings by device type, social media monitoring, etc.) that is at the aggregate level and cannot be reliably attributed to individuals. These data have value, to be sure, but aggregate traffic data can sometimes be very misleading. This is why—for the Mobile Wallet project CMB did—we sourced mobile app and mobile web usage from the Research Now mobile panel where it is possible to attribute mobile usage data to individuals (and have additional profiling information on these individuals). 
   
   When you’re faced with aggregate level data that isn’t linked to individuals, we recommend either getting some sample from a mobile usage panel in order to understand and calibrate your results better and/or doing a parallel survey-sampling so you can make more informed assumptions (this holds true for aggregate search trend data, website clickstream data, and social media listening tools).

2. Unstacking the passive mobile behavioral data. Mobile behavioral data that is linked to individuals typically comes in “stacked” form, i.e., every consumer tracked has many different records: one for each active mobile app or mobile website session. Analyzing this data in its raw form is very useful for understanding overall mobile usage trends. What these stacked behavioral data files do not tell you, however, is the reach or incidence (e.g., how many people or the percentage of an addressable market) of any given mobile app/website. It also doesn’t tell you the mobile session frequency or duration characteristics of different consumer types nor does it allow you to profile types of people with different mobile behaviors. 
   
   Unstacking a mobile behavioral data file can sometimes end up being a pretty big programming task, so we recommend deciding upfront exactly which apps/websites you want to “unstack.” A typical behavioral data file that tracks all smartphone usage during a given period of time can involve thousands of different apps and websites. . .and the resulting unstacked data file covering all of these could quickly become unwieldy.

3. Beware the outlier! Unstacking a mobile behavioral data file will reveal some pretty extreme outliers. We all know about outliers, right? In survey research, we scrub (or impute) open-ended quant responses that are three standard deviations higher than the mean response, we take out some records altogether if they claim to be planning to spend $6 billion on their next smartphone purchase, and so on. But outliers in passive data can be quite extreme. In reviewing the passive data for this particular project, I couldn’t help but recall that delightful Adobe Marketing ad in which a baby playing with his parents’ tablet repeatedly clicks the “buy” button for an encyclopedia company’s e-commerce site, setting off a global stock bubble. 
   
   Here is a real-world example from our mobile wallet study that illustrates just how wide the range is of mobile behaviors across even a limited group of consumers: the overall “average” time spent using a mobile wallet app was 162 minutes, but the median time was only 23 minutes. A very small (<1% of total) portion of high-usage individuals created an average that grossly inflated the true usage snapshot of the majority of users. One individual spent over 3,000 minutes using a mobile wallet app.

4. Understand what is (and what is not) captured by a tracking platform. Different tracking tools do different things and produce different data to analyze. In general, it’s very difficult to capture detailed on-device usage for iOS devices. . .most platforms set up a proxy that instead captures and categorizes the IP addresses that the device transmits data to/from. In our Mobile Wallet study, as one example, our mobile behavioral data did not pick up any Apple Pay usage because it leverages NFC to conduct the transaction between the smartphone and the NFC terminal at the cash register (without any signal ever being transmitted out to the mobile web or to any external mobile app, which is how the platform captured mobile usage).   There are a variety of tricks of the trade to account for these phenomenon and to adjust your analysis so you can get close to a real comparison, but you need to understand what things aren’t picked up by passive metering in order to apply them correctly.

5. Categorize apps and websites. Needless to say, there are many different mobile apps and websites that people use, and many of these do a variety of different things and are used for a variety of different purposes. Additionally, the distribution of usage across many niche apps and websites is often not useful for any meaningful insights work unless these are bundled up into broader categories. 
   
   Some panel sources—including Research Now’s mobile panel—have existing mobile website and app categories, which are quite useful. For many custom projects, however, you’ll need to do the background research ahead of time in order to have meaningful categories to work with. Fishing expeditions are typically not a great analysis plan in any scenario, but they are out of the question if you’re going to dive into a big mobile usage data file.
   
   As you work to create meaningful categories for analysis, be open to adjusting and iterating. A certain group of specific apps might not yield the insight you were looking for. . .learn from the data you see during this process then try new groupings of apps and websites accordingly.

6. Consider complementary survey sampling in parallel with behavioral analysis. During our iterative process of attempting to categorize mobile apps from reviewing passive mobile behavioral data, we were relieved to have a complementary survey sampling data set that helped us make some very educated guesses about how or why people were using different apps. For example, PayPal has a very successful mobile app that is widely used for a variety of reasons—peer-to-peer payments, ecommerce payments, and, increasingly, for “mobile wallet” payments at a physical point of sale. The passive behavioral data we had could not tell us what proportion of different users’ PayPal mobile app usage was for which purpose. That’s a problem because if we were relying on passive data alone to tell our clients what percent of smartphone users have used a mobile wallet to pay at a physical point of sale, we could come up with grossly inflated numbers. As an increasing number of mobile platforms add competing functionality (e.g., Facebook now has mobile payments functionality), this will remain a challenge.
   
   Passive tracking platforms will no doubt crack some of these challenges accurately, but some well-designed complementary survey sampling can go a long way towards helping you read the behavioral tea leaves with greater confidence. It can also reveal differences between actual vs. self-reported behavior that are valuable for businesses (e.g., a lot of people may say they really want a particular mobile functionality when asked directly, but if virtually no one is actually using existing apps that provide this functionality then perhaps your product roadmap can live without it for the next launch).

Want to learn more about the future of Mobile Wallet? Join us for a webinar on August 19, and we’ll share our insights with you!

Chris Neal leads CMB’s Tech Practice. He judges every survey he takes and every website he visits by how it looks on his 4” smartphone screen, and has sworn off buying a larger “phablet” screen size because it wouldn’t fit well in his Hipster-compliant skinny jeans.

Dr. Jay heads up the analytics group at CMB. He opted for the 6 inch “phablet” and baggy jeans.  He does look stupid talking to a brick. He’s busy trying to compute which event has the higher probability: his kids texting him back or his kids completing an online questionnaire. Every month, he answers your burning market research questions in his column: Dear Dr. Jay. Got a question? Ask it here!

Want to learn more about combining survey data with passive mobile behavioral data? Watch our recent webinar with Research Now that discusses these findings in depth.

The explosion of mobile web and mobile app usage presents enormous opportunities for consumer insights professionals to deepen their understanding of consumer behavior, particularly for “in the moment” findings and tracking consumers over time (when they aren’t actively participating in research. . .which is 99%+ of the time for most people). Insight nerds like us can’t ignore this burgeoning wealth of data—it is a potential goldmine. But, working with passive mobile behavioral data brings with it plenty of challenges, too. It looks, smells, and feels very different from self-reported survey data:

• It’s big. (I’m not gonna drop the “Big Data” buzzword in this blog post, but—yep—the typical consumer does indeed use their smartphone quite a bit.)
• It’s messy.
• We don’t have the luxury of carefully curating it in the same way we do with survey sampling. 

As we all find ourselves increasingly tasked with synthesizing insights and a cohesive “story” using multiple data sources, we’re finding that mobile usage and other data sources don’t always play nicely in the sandbox with survey data. Each of them have their strengths and weaknesses that we need to understand in order to use them most effectively. 

So, in our latest in a series of sadomasochistic self-funded thought leadership experiments, we decided to take on a challenge similar in nature to what more and more companies will ask insights departments to do: use passive mobile behavioral data alongside survey-based data for a single purpose. In this case, the topic was an analysis of the U.S. mobile wallet market opportunity. To make things extra fun, we ensured that the passive mobile behavioral data was completely unlinked to the survey data (i.e., we could not link the two data sources at the respondent level for deeper understanding or to do attitudinal + behavioral based modeling). There are situations where you’ll be given data that is linked, but currently—more often than not—you’ll be working with separate silos and asked to make hay.

During this experiment, a number of things became very clear to us, including:

• the actual value that mobile behavioral data can bring to business engagements
• how it could easily produce misleading results if you don’t properly analyze the data
• how survey data and passive mobile behavioral data can complement one another greatly

Interested? I’ll be diving deep into these findings (and more) along with Roddy Knowles of Research Now in a webinar this Thursday, July 16^th at 1pm ET (11am PT). Please join us by registering here. 

Chris leads CMB’s Tech Practice. He enjoys spending time with his two kids and rock climbing.

Watch our recent webinar with Research Now to hear the results of our recent self-funded Consumer Pulse study that leveraged passive mobile behavioral data and survey data simultaneously to reveal insights into the current Mobile Wallet industry in the US.

Dear Dr. Jay, 

What’s hot in market research?

-Steve W., Chicago

Dear Steve, 

We’re two months into my column, and you’ve already asked one of my least favorite questions. But, I will give you some credit—you’re not the only one asking such questions. In a recent discussion on LinkedIn, Ray Poynter asked folks to anticipate the key MR buzzwords for 2015. Top picks included “wearables” and “passive data.” While these are certainly topics worthy of conversation, I was surprised Predictive Analytics (and Big Data), didn’t get more hits from the MR community. My theory: even though the MR community has been modeling data for years, we often don’t have the luxury of getting all the data that might prove useful to the analysis. It’s often clients who are drowning in a sea of information—not researchers.

On another trending LinkedIn post, Edward Appleton asked whether “80% Insights Understanding” is increasingly "good enough.” Here’s another place where Predictive Analytics may provide answers. Simply put, Predictive Analytics lets us predict the future based on a set of known conditions. For example, if we were able to improve our order processing time from 48 hours to 24 hours, Predictive Analytics could tell us the impact that would have on our customer satisfaction ratings and repeat purchases. Another example using non-survey data is predicting concept success using GRP buying data.

What do you need to perform this task? 

• We need a dependent variable we would like to predict. This could be loyalty, likelihood to recommend, likelihood to redeem an offer, etc.

• We need a set of variables that we believe influences this measure (independent variables). These might be factors that are controlled by the company, market factors, and other environmental conditions.

• Next, we need a data set that has all of this information. This could be data you already have in house, secondary data, data we help you collect, or some combination of these sources of data.

• Once we have an idea of the data we have and the data we need, the challenge becomes aggregating the information into a single database for analysis. One key challenge in integrating information across disparate sources of data is figuring out how to create unique rows of data for use in model building. We may need a database wizard to help merge multiple data sources that we deem useful to modeling.  This is probably the step in the process that requires the most time and effort. For example, we might have 20 years’ worth of concept measures and the GRP buys for each product launched. We can’t assign the GRPs for each concept to each respondent in the concept test. If we did, there wouldn’t be much variation in the data for a model. The observation level becomes a concept. We then aggregate the individual level responses across each concept and then append the GRP data. Now the challenge becomes one of the number of observations in the data set we’re analyzing.

• Lastly, we need a smart analyst armed with the right statistical tools. Two tools we find useful for predictive analytics are Bayesian networks and TreeNet. Both tools are useful for different types of attributes. More often than not, we find the data sets comprised of scale data, ordinal data, and categorical data. It’s important to choose a tool that is capable of working with this type of information

The truth is, we’re always looking for the best (fastest, most accurate, useful, etc.) way to solve client challenges—whether they’re “new” or not. 

Got a burning research question? You can send your questions to DearDrJay@cmbinfo.com or submit anonymously here.

Dr. Jay Weiner is CMB’s senior methodologist and VP of Advanced Analytics. Jay earned his Ph.D. in Marketing/Research from the University of Texas at Arlington and regularly publishes and presents on topics, including conjoint, choice, and pricing.