Not all generations view candidates equally, according to a survey released today by Addison Group. The survey examined the preferences of hiring managers from each age group: Baby boomers, Generation X and millennials.

Proven results and references were more important to Boomers (61% and 30%, respectively) than Millennials (44% and 21%, respectively). Boomers weigh the interview more heavily, with 30% more boomer hiring mangers ranking the interview above the resume or references.

Millennials were most concerned with a candidate’s level of education, schools attended and GPA at 27%, 13%, and 16%, respectively.

Generation X values a candidate’s resume (64%) significantly more than millennials (50%).

Candidate sources are the most polarizing of the survey results, with twice as many millennials trusting Facebook and Twitter to identify candidates (45% and 28%, respectively) compared to other generations (Generation Xers: 27% and 14%, boomers: 15% and 9%).

The survey also found relevant work experience and skills are the most important aspects of a resume for hiring managers overall, with over half of respondents ranking them highest when considering moving a candidate to the interview phase. On the other side of the spectrum, hiring managers view volunteer experience, GPA and schools attended as the least important factors for consideration.

The survey found more hiring managers favor work experience not related to a role more than volunteer experience. And more than three-fourths, 77%, of hiring managers note that the reputation of previous employers are an important determinant of a candidate’s qualification for a particular role, while 90% of hiring managers admit they always or sometimes notice when a resume isn’t tailored to the role in question.

“Jobseekers are inundated with information surrounding the process of finding and securing a job —from conflicting resume writing advice to interview guidance that simply isn’t rooted in research,” said Addison Group CEO Thomas Moran. “Trends in hiring manager preferences change over time, especially as the workforce is becoming more and more dominated by the millennial generation. Today’s jobseekers need better resources, more accurate information and greater assistance when anticipating what hiring managers will value throughout the interviewing process if they want to land a job.”

The survey included 505 employees responsible for hiring in some capacity at their company. It was commissioned by Addison Group and executed by Survey Monkey.