The phrase "a change over time" is correct and usable in written English.
It can be used to describe a transformation or evolution that occurs gradually across a period.
Example: "The study highlights a change over time in the population's attitudes towards climate change."
Alternatives: "an evolution over time" or "a transformation over time".
But many studies have noted that people with dementia have chronic inflammation; this study suggests a change over time.
A Change Over Time A Minnesota native and a childhood tomboy, Dr. Twenge had once planned on a career in gender studies.
The incidence of obesity by weight group was evaluated for a change over time; the impact of race and socioeconomic status was analyzed.
The observed decrease in TDRMs and a simplification of the resistance patterns may reflect a change over time in the characteristics of the infecting subjects who are often unaware of their infection and transmit a wild-type strain.
"I have seen a change over time with Al Qaeda in Iraq," said Maj. Gen. Jeffrey Buchanan, the American military's spokesman in Iraq, in an interview at Umm Qasr, the port where the Iraqi military was celebrating Navy Day.
"Or is what we call a low frequency oscillation just a change over time in the frequency and magnitude of individual El Niño and La Niña events?" Regardless, "it seems pretty clear that we've transitioned from a time period where there was a prevalence for La Niña conditions," Mann said.
A significant interaction would support a differential change over time, and possibly confirm a hypothesis of intervention effects.
Generally, biologists view evolution in strictly physical terms: how does a wing or a jaw change over time?
We used a formula that, for practical reasons, assumed a linear change over time between measurements.
A model including calendar years did not show a significant change over time.
