The current version of the MLQ5X includes 36 items that are broken down into 9 scales with 4 items measuring each scale. Subsequent validation work by John Antonakis and his colleagues provided strong evidence supporting the validity and reliability of the MLQ5X. Indeed, Antonakis went on to confirm the viability of the proposed nine-factor MLQ model, using two very large samples. Although other researchers have still been critical of the MLQ model, since 2003 no one has been able to provide dis-confirming evidence of the theorized nine-factor model with such large sample sizes as those published by Antonakis.