An experiment was conducted to see if stressed dogs are more likely to wag their tails to the left when compared to happier dogs. Sixteen dogs were selected for the study. Each dog was placed in a room with distractions and loud noises. The researcher studied the patterns of the dogs' tail-wagging, calculating the percentage of times the dogs' tails wagged to the left. Then, the same dogs were placed in a comfortable room where their owners gently approached them and offered them treats. Again, the researcher studied the patterns of the dogs' tail-wagging, calculating the percentage of times the dogs' tails wagged to the left. Finally, the researcher compared the rates of left-wagging during both the stressful and happy times. They noticed that the left-wagging percentage was higher during the stressful encounters when compared to the happy encounters.EXPLANATORY VARIABLE