🏈Why Panel Data May Undervalue Sponsorship Brand Impact
When assessing the brand impact of sports sponsorships, the choice of data sources matters. We've recently explored this by collecting over 2,000 responses from NFL fans across four teams, matching panel data to key indicators like passion and attendance. The findings were then compared to over 1 million responses from team database samples, representing 25 NFL teams.
🏈What did we find?
Panel members completed the same surveys nearly 50% faster—a median time of 5.63 minutes, compared to 8.37 minutes for team database respondents. This isn't just about speed; it's about quality of insight.
The attached chart illustrates how quickly different groups completed the survey across 10 deciles. The key takeaway: over 40% of panel members finish in just 3-5 minutes, whereas hardly any database fans do. The variance in response times signals a deeper issue.
🏈Why does this matter?
The impact is twofold:
1. Lower brand lift: In two major NFL sponsorships, panel members reported brand lift half that of team database respondents. Faster completions may lead to less thoughtful responses.
2. Lower variance: The statistical variance is critical in understanding respondent behavior. For example, in brand equity scales (0-100) the standard deviation (SD) in responses is 26.22 for panel data, compared to 35.18 for team databases. A narrower range of responses suggests that panelists don’t deviate much in their answers, leading to less differentiation between brands.
In layman's terms, less time spent on surveys equals less variance in responses, which impacts the richness of insights we can gather for sponsors.
🏈So, are panel members different?
Panel members might be quicker readers—or perhaps they're just less engaged. Attention checks show that 10-20% can't accurately input their favorite team's name. While we match panelists for factors like attendance and passion, on average they differ in several key areas:
-Younger (by 10 years)
-Lower income (37.5% earn less than $75k vs. 23.4% of NFL fans)
-More female (+12%)
-More single (+11%)
-More renters (+13%)
-Watch less linear TV (-10%)
Panel sources are well-suited for gathering nominal/categorical data to classify fans. When it comes to interval/continuous data used in evaluating the true brand lift of sponsorships, representative samples from team databases provide a deeper, more accurate view than panels.
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