. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: Psychol Assess. 2015 Mar 30;27(3):955–964. doi: 10.1037/pas0000102

Table 4.

Means (and percent) correct and correlations with age for the standard and short PLOT showing sex and age effects for the full-length (24-item) and shortened (15-item) versions of the PLOT.

	Sex differences					Age trends
Score	Means		Diff (M - F)	t	p-value	Corr with age	t	p-value
Score	Male	Female	Diff (M - F)	t	p-value	Corr with age	t	p-value
Full-Length	48.12 (66.8%)	45.46 (63.1%)	2.66 (3.7%)	10.3	< 0.001	0.402	40.0	< 0.001
Shortened	32.07 (71.3%)	30.70 (68.2%)	1.37 (3.1%)	7.4	< 0.001	0.408	40.7	< 0.001

Note. Diff = difference; M = Male; F = Female; Corr = Correlation; means based on polytomous scores, such that the highest possible score on the 24-item test was 72 (score of 3 on all items), and for the 15-item test was 45.