What causes the starter to turn over in a Chevy cavalier when the key switch is not on?

In a Chevy Cavalier, if the starter turns over without the key switch being in the "on" position, it may be due to a malfunctioning ignition switch, a short circuit in the wiring, or a stuck relay. Additionally, a faulty starter solenoid could also cause the starter to engage unexpectedly. It's important to inspect the electrical components to diagnose the issue accurately.