The phrase "achievement complex" is correct and usable in written English.
It can be used to describe a psychological condition where an individual feels a constant need to achieve or succeed, often leading to stress or anxiety.
Example: "Her achievement complex drove her to work long hours, always striving for perfection in every project."
Alternatives: "success obsession" or "achievement syndrome".
Robots and other intelligent systems in human environment need high-level cognitive capabilities to enable the achievement of complex goals in complex environments using limited computational resources.
But Jet Set Willy is Smith's lasting achievement – a complex twitch platformer full of tricks, where Willy has to clean the mansion he bought with the proceeds of the first game.
Still, the debate over funding, class sizes and the perhaps consequent student achievement remains complex.
The consequence of this refocus has reduced public-sector attention on the achievement of complex goals in favor of greater emphasis on realizing more measurable one-dimensional outcomes (Dunleavy 1995; Davis 1997; Weller and others 1997; Painter 2001; Terry 2005).
The paper presents some achievements in complex modelling and simulation in mechatronics, being underlined some characteristics of the mechatronic field together with applications of design principles.
An exciting work, it's an important, complex achievement.
The most notable technical achievement was a complex summit water supply that included unique diversion of flows and storage provision.
Sheena Joughin in the Sunday Telegraph agreed: "This is a gripping, psychologically complex achievement, whose greatest success is its lingering sense of unease.
The work marks a world first for the field of regenerative medicine, which has promised so much but until now failed to produce the major achievement of a complex organ that connects to a recipient's blood supply.
Some critics regard this as Achebe's greatest achievement, with its complex structure and characterisation, and its interrogation of the interstices between subjective desire and external forces in the making of history.
