Measurable results: Digital advertising and marketing allow businesses to track and measure the ______________ of their campaign in real-time.

The term you're looking for to fill in the blank is "effectiveness" or "performance."

Digital advertising and marketing provide businesses with the tools to track and measure the effectiveness of their campaigns in real-time. This capability is crucial, as it allows companies to analyze data such as click-through rates, conversion rates, and engagement metrics. By measuring effectiveness, businesses can ascertain which strategies are yielding the best results, allowing for timely adjustments to improve overall campaign performance. This data-driven approach not only enhances the return on investment (ROI) but also enables marketers to allocate resources more efficiently, optimizing their advertising efforts to reach their target audience effectively. In essence, the measurability of digital campaigns is one of their significant advantages over traditional marketing methods, leading to more informed decision-making and better outcomes.