(CNN) Smoking isn't the only way teens are using cannabis. According to a study published Friday in the medical journal JAMA Network Open, they are also vaping it or using edibles.

The study surveyed 3,177 10th graders in southern California in 2015 and 1,077 reported ever using cannabis. It found that 61.7% of those who had used cannabis had tried at least two methods -- combustible, edible or vaporized cannabis.

Use of all three cannabis products was reported by 8.2% of those who'd used it.

"We found that cannabis use was highly prevalent, but what was interesting and new was that the majority of youth who had used cannabis in one form had not only used just one type of cannabis, but they used two or more different types of cannabis products," said Adam Leventhal , lead author of the study and director of the University of Southern California Health, Emotion and Addiction Laboratory.

Of those participants who had ever used cannabis, 31.3% had used combustible cannabis, 21.3% had used edibles and 10.5% had used vaporized cannabis. Those who had used cannabis in the past 30 days followed the same pattern.

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