Simplify the following text for a Grade 13 native English-speaking person.
Original: This is a specific trait with key consequences that in the past has often been confused with innate shyness , social anxiety problems , inhibitedness , or even social phobia and innate fearfulness , introversion , and so on .
Simplified: This is a specific trait with key consequences that in the past has often been confused with innate shyness , inhibitedness , innate fearfulness , introversion , and so on .