'Just because an employee might not be invigorated or dedicated to his or her work on a Monday doesn't mean he or she won't be engaged on Tuesday or vice versa,' Culbertson said.

'Additionally, one's work can facilitate things at home to a different extent depending on the day and what has happened on that particular day.'

The researchers, according to a KSU relese, also found that daily work engagement had a positive effect on family life after controlling for workload -- heavy or light work hours were not a factor.

However, 'work addicts, or workaholics, have been shown to experience higher levels of work-family conflict,' Culbertson said.

These findings were presented at the annual conference for Society for Industrial and Organisational Psychology in New Orleans.