Formats are varied, from adjectives such as "warm", to sentences such as "I like parties", or reports of behaviour "I have driven past the speed limit" and response formats from yes/no to Likert scales, to continuous "slider" responses. Some inventories are global, such as the NEO, others focus on particular domains, such as anger or aggression.
Different types of questionnaires exist, including adjectives ("warm"), sentences ("I like parties"), behavioral reports ("I have driven past the speed limit"), and response formats like yes/no, Likert scales, and continuous sliders. Some inventories are broad (global), while others focus on specific areas (e.g., anger or aggression).