Supported Inventories

PSYCTL includes several validated psychological inventories for measuring personality traits.

Available Inventories

Inventory	Items	Domain	License
ipip_neo_120	120	Big Five (N, E, O, A, C)	Public Domain
ipip_neo_300	300	Big Five (detailed facets)	Public Domain
rei_40	40	Rational-Experiential thinking styles	Research use
sd4_28	28	Short Dark Tetrad (Mach, Narc, Psycho, Sadism)	Research use
vgq_14	14	Victim Gaslighting Questionnaire	Research use
indcol_32	32	Individualism-Collectivism	Research use

Usage

CLI

# List all inventories
psyctl inventory.list

# Run inventory test
psyctl benchmark inventory \
  --model "meta-llama/Llama-3.1-8B-Instruct" \
  --inventory "ipip_neo_120"

Python API

from psyctl.data.inventories import create_inventory

inventory = create_inventory("ipip_neo_120")
questions = inventory.get_questions()
traits = inventory.get_supported_traits()

Big Five Domains (IPIP-NEO)

Code	Domain	Description
N	Neuroticism	Emotional instability, anxiety, moodiness
E	Extraversion	Sociability, assertiveness, positive emotions
O	Openness	Curiosity, imagination, preference for variety
A	Agreeableness	Cooperation, trust, compassion
C	Conscientiousness	Discipline, organization, goal-directed behavior

Adding New Inventories

See Adding Inventories for a step-by-step guide on contributing new psychological instruments.