مؤلف: Christine A. Bachrach

Fertility rates vary considerably across and within societies, and over time. Over the last three decades, social demographers have made remarkable progress in documenting these axes of variation, bu …

Rigorous methodological techniques have been developed in the last decade to improve the reliability and accuracy of self reports from research volunteers and patients about their pain, mood, substan …

Rigorous methodological techniques have been developed in the last decade to improve the reliability and accuracy of self reports from research volunteers and patients about their pain, mood, substan …

Rigorous methodological techniques have been developed in the last decade to improve the reliability and accuracy of self reports from research volunteers and patients about their pain, mood, substan …