Story highlights Half of a focus group of undecided Ohio voters said they are more likely to vote for Donald Trump after his speech

Participants said they liked that Trump's speech was stern and serious but not vicious.

Several thought Trump lacked specifics

Cleveland (CNN) After listening to Donald Trump's speech Thursday night, about half of a group of undecided Ohio voters said they are more likely to vote for the Republican nominee.

The focus group of 20 Republican and independent voters from the crucial swing state were asked to react and respond to the speech in real-time using mobile devices powered by Microsoft Pulse.

Overall, participants said they liked that the speech was stern and serious but not vicious. They found the tone mostly positive, upbeat and forward-looking.

"Usually when I hear him talk it's a lot of polarizing, hateful talk, but he seemed more inclusive this time," Republican Jen Straniero told CNN's John Berman.

Perhaps not surprisingly, the Republicans in the group responded positively to the speech. One of the highest peaks of approval occurred when Trump pledged, "I am with America. I'm with you." Republican Nick Somich liked that Trump turned the focus back to the voters. "I think that use of 'you' was a powerful message," he said.

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