"serious qualification" is correct and usable in written English.
You can use it to refer to a requirement that is important or necessary in order to do something. For example, "To become a doctor, you need a serious qualification in medicine."
To assert either theme without serious qualification, according to Ernst B. Haas, is historically simplistic and morally misleading.
Keep up that sort of growth and the sport will soon hope to find the talent it needs to start producing serious qualification contenders for major championships.
While acknowledging attention to be inconstant and wavering, and mind wandering to be ubiquitous, we argue and present evidence that such simple quantitative estimates are misleading and potentially meaningless without serious qualification.
A serious qualification is that there is no available information that would allow direct measures of food insecurity.
He must have some serious qualifications.
"When I was simply told his résumé, I thought, 'What sense does that make?' but as I dug deeper and then talked to Patrick I realized that he had very serious qualifications," Mr. Eustis said.
Now some may say her time spent raising children and being involved with New York City schools, and writing books, are not serious qualifications for public office.
Like me (way back in 2008) millions of high-school seniors with little or no serious qualifications are asking themselves this week how they possibly managed to get into the colleges of their dreams.
Almost every step in this argument seems to me either wrong or open to serious challenge or qualification.
Russia began in a surprisingly languid manner, allowing the Greeks to come at them as if they did not believe they represented a serious threat to their qualification hopes.
Though dismissal procedures are a serious issue, getting teacher qualification, development and evaluation right are critical for schools' long-term health, he said.
