Reading a road map upside-down, excelling at chess, and generating synonyms for "brilliant" may seem like three different skills. But each is thought to be a measurable indicator of general intelligence or "g," a construct that includes problem-solving ability, spatial manipulation, and language acquisition that is relatively stable across a person's lifetime.| Psychology Today
People who struggle with imposter syndrome believe that they are undeserving of their achievements and the high esteem in which they are, in fact, generally held. They feel that they aren’t as competent or intelligent as others might think—and that soon enough, people will discover the truth about them. Those with imposter syndrome—which is not an official diagnosis—are often well accomplished; they may hold high office or have numerous academic degrees.| Psychology Today
Confidence is a belief in oneself, the conviction that one has the ability to meet life's challenges and to succeed—and the willingness to act accordingly. Being confident requires a realistic sense of one’s capabilities and feeling secure in that knowledge. Projecting confidence helps people gain credibility, make a strong first impression, deal with pressure, and tackle personal and professional challenges. It’s also an attractive trait, as confidence helps put others at ease.| Psychology Today