Abilities and Manifesters

The ability that your powers depend on - your key ability score as a manifester - is related to what psionic class (or classes) you have levels in: Intelligence (psion), Wisdom (psychic warrior), and Charisma (wilder). The modifier for this ability is referred to as your key ability modifier. If your character’s key ability score is 9 or lower, you can’t manifest powers from that psionic class.
Just as a high Intelligence score grants bonus spells to a wizard and a high Wisdom score grants bonus spells to a cleric, a character who manifests powers (psions, psychic warriors, and wilders) gains bonus power points according to his key ability score. Refer to table below.

How To Determine Bonus Power Points: Your key ability score grants you additional power points equal to your key ability modifier x your manifester level x1/2. Table below shows these calculations for class levels 1st through 20th and key ability scores from 10 to 41.

Ability Score	Bonus Power Points (by Class Level)
Ability Score	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th	11th	12th	13th	14th	15th	16th	17th	18th	19th	20th
10-11	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
12-13	0	1	1	2	2	3	3	4	4	5	5	6	6	7	7	8	8	9	9	10
14-15	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
16-17	1	3	4	6	7	9	10	12	13	15	16	18	19	21	22	24	25	27	28	30
18-19	2	4	6	8	10	12	14	16	18	20	22	24	26	28	30	32	34	36	38	40
20-21	2	5	7	10	12	15	17	20	22	25	27	30	32	35	37	40	42	45	47	50
22-23	3	6	9	12	15	18	21	24	27	30	33	36	39	42	45	48	51	54	57	60
24-25	3	7	10	14	17	21	24	28	31	35	38	42	45	49	52	56	59	63	66	70
26-27	4	8	12	16	20	24	28	32	36	40	44	48	52	56	60	64	68	72	76	80
28-29	4	9	13	18	22	27	31	36	40	45	49	54	58	63	67	72	76	81	85	90
30-31	5	10	15	20	25	30	35	40	45	50	55	60	65	70	75	80	85	90	95	100
32-33	5	11	16	22	27	33	38	44	49	55	60	66	71	77	82	88	93	99	104	110
34-35	6	12	18	24	30	36	42	48	54	60	66	72	78	84	90	96	102	108	114	120
36-37	6	13	19	26	32	39	45	52	58	65	71	78	84	91	97	104	110	117	123	130
38-39	7	14	21	28	35	42	49	56	63	70	77	84	91	98	105	112	119	126	133	140
40-41	7	15	22	30	37	45	52	60	67	75	82	90	97	105	112	120	127	135	142	150