The phrase "abilities of observation" is correct and usable in written English.
It can be used when discussing someone's capacity to notice or perceive details in their environment or in a specific context, such as research or analysis.
Example: "Her abilities of observation allowed her to notice subtle changes in the experiment that others overlooked."
Alternatives: "observational skills" or "powers of observation."
The results showed a statistically significant difference between pre- and post-test scores at p < 0.001 level in students' abilities of making observations, predictions, and explanations and testing them.
Sometimes we move deep because we stick to the surface, with the ability of keen observation.
An adaptive RBF neural network is added to the track control in order to guarantee the robust tracking ability of the observation system.
There exists no statistically significant difference in their ability of making observations.
Such uncertainty means that the risk of experiments with mammalian-transmissible, possibly highly virulent influenza viruses remains high even if some aspects of their laboratory biology are reassuring; it also implies limitations on the ability of laboratory observations to guide interpretation of surveillance of strains in the field.
It would seem a useful ability, so this lack of observation is striking.
The Verhulsts pride themselves on their proclivity for drinking, their sexual and fighting prowess, but what differentiates Dimmy is his powers of observation and ability to describe their lives with a wry, laconic humour.
But the Carracci powers of observation and ability to handle complicated narratives is best seen in their drawings and prints, which range from Annibale's charmingly intimate ink with wash, "Domestic Scene" to Ludovico's ambitious "Last Communion of St. Jerome," a tightly composed altarpiece proposal.
But the Carracci powers of observation and ability to handle complicated narratives is best seen in their drawings and prints, which range from Annibale's charmingly intimate ink with wash, "A Domestic Scene" (probably early 1580's), in which a mother warms her child's nightgown before a fire, to Ludovico's ambitious "Last Communion of St. Jerome" (no date), a tightly composed altarpiece proposal.
If I had written the scene about the ambush on Devon Hill relying solely on my powers of observation and ability to absorb impressions under fire, it would have been a long, detailed description of the dirt I was staring at while lying on my face, quietly cursing.
