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Appendix C

The content in this publication was current at the time it was published, but it is not being updated. The publication is provided for historical purposes only.

Table 18. Phe Manipulation and Various Outcomes

Outcome	N	R	R ²	p
Attention	17	-0.385	0.148	0.1146
Sustained and selective	14	-0.428	0.183	0.1115
Other cognitive and motor skills	23	-0.095	0.009	0.6588
Memory	7	-0.089	0.008	0.8495
Motor	10	-0.396	0.157	0.2280

Note. N=number of effect sizes. A negative correlation indicates that as Phe level increases via this manipulation, performance in these cognitive and behavioral domains decreases.

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Appendix C

Table 18. Phe Manipulation and Various Outcomes