Response Validity Battery
Three complementary checks on how someone answered: Chapman Infrequency, Marlowe–Crowne Form C (MC-SDS-13), and the Novo-style 8-item SDR index from IPIP-NEO-120 stems. DSQ-88 Lie is reserved for a later slot.
What’s in this Battery
Composes Infrequency and MC-SDS-13 with a lightweight SDR path that reuses the same IPIP-NEO-120 item stems already shipped for the NEO-120 SDR sidecar — not a full NEO-120 take. One Battery SKU unlocks the combined report.
Chapman careless / non-credible check. Cutoff: more than two endorsements flags the protocol.
Crowne Form C short form. Raw score + descriptors; open M/SD norms deferred.
Eight IPIP-NEO stems, Novo-style raw range 8–40. Not a sixth personality factor.
Deferred / not yet included
DSQ-88 Lie. Not in the catalog yet. Slot documented here; items will ship when Daniel’s DSQ-88 Lie content is in-repo. Do not invent DSQ items.
Scoring & report
Infrequency uses the Chapman cutoff (>2 = protocol invalid), not percentiles. MC-SDS-13 reports raw score and descriptors (Crowne open M/SD deferred — not invented). SDR reports raw 8–40 with descriptors (Johnson AU percentiles deferred).
Free to take. Unlock the completed Battery report for $15 (repeats $11). One Battery SKU — not separate unlocks per subscale.
Source
Chapman Infrequency Scale; Reynolds (1982) Marlowe–Crowne Form C; SDR stems from IPIP-NEO-120 keyed to the NovoPsych Socially Desirable Responding validity index (Paulhus, 2002 framing).