The effects of ad length, ad position, and ad-context congruity
on brand name recognition in an online in-stream video
advertising context were investigated. Video ads and video
programs were selected from YouTube as stimuli. Findings from
a laboratory experiment indicate that long ads enhance
recognition. Mid-roll ads lead to better brand name recognition
than pre-roll and post-roll ads because of attention spillover.
However, a mid-roll ad is futile when the ad is unrelated to the
video content. In contrast, post-roll ads can improve brand name
recognition in an incongruent context.