Published in the Journal of Veterinary Medical Science, this study by A. Kutsumi, M. Nagasawa, Mitsuaki Ohta, and Nobuyo Ohtani investigates whether early puppy socialization and structured command training can reduce the risk of canine behavior problems. Recognizing that early developmental periods are critical for shaping adult behavior, the researchers examined how different types of early training experiences influence obedience and responses to stimuli.
The study evaluated 142 dogs divided into four groups based on training history: a puppy class (PC) group that attended six weekly one-hour sessions; a puppy party (PP) group attending a single one-hour social event; an adult class (AC) group receiving six weeks of basic obedience lessons; and a no class (NC) group with no formal training. Behavioral outcomes were assessed using both a standardized behavior test—which measured responses to commands, recall, separation, novel stimuli, and strangers—and the C-BARQ, which evaluated 15 behavioral factors.
The behavior test revealed that dogs in the PC and AC groups showed significantly stronger command responsiveness than those in the PP or NC groups. This finding indicates that structured training, whether during puppyhood or adulthood, improves obedience, whereas unstructured social events alone do not have the same effect.
Notably, dogs in the puppy class (PC) group exhibited more positive responses to strangers than dogs in the AC or NC groups and showed a trend toward more positive responses compared to the PP group. This suggests that early-life structured training that includes socialization components may reduce fear of strangers and associated problem behaviors later in life.
The combined findings show that both puppy classes and structured adult training contribute to stronger obedience behaviors, but puppy classes offer additional protective benefits against the development of fear-based or disobedient behaviors. Because early experiences shape social confidence and learning trajectories, the results underscore the importance of developmentally timed training programs in promoting canine welfare.
Overall, the study supports the view that positive, structured training during early life plays a crucial role in shaping well-adjusted adult dogs. Integrating such programs into routine canine care may reduce the prevalence of common behavior problems and foster stronger, more harmonious human–dog relationships.
Source: Kutsumi, A., Nagasawa, M., Ohta, M., & Ohtani, N. (2013). Importance of puppy training for future behavior of the dog. Journal of Veterinary Medical Science. Published February 1, 2013.







