How do I turn off SwiftKey Auto Insert Predictions?

To turn off autocorrection, follow the below steps:

1. Go into SwiftKey Settings
2. Tap 'Typing' 
3. Tap 'Typing & Autocorrect'
4. Uncheck 'Auto insert prediction' and/or 'Autocorrect'

For more detailed information regarding these options please see What happens when I press the spacebar?