Title
The Abilities of Man Their Nature and Measurement,Used
Delivery time: 8-12 business days (International)
Contents Include: THE RIVAL DOCTRINES: The problem Monarchic Doctrine, 'Intelligence' Oligarchic Doctrine, Formal Faculties Oligarchic Doctrine, Types Anarchic Doctrine, 'General level', 'Average', or 'Sample' Eclectic Doctrine, Two Factors Proposed Explanations of G Universal Mental Competition Hypothesis of Mental Energy THE FUNDAMENTAL FACTS: Proof that G and S Exist Universality of G Amount of G in Different Kinds of Eduction 'Special Abilities' and 'Group Factors' Goodness and Speed of Response Law of Span, 'Attention' Law of Retentivity of Dispositions Law of Inertia, 'Perseveration' Law of Fatigue Oscillations in Efficiency Law of Conation, W and C Influence of Age Influence of Heredity and Sex Mind and Body Cardinal Conclusions
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⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.