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Presents a discussion of matching, randomization, random sampling, and other methods of controlling extraneous variation. The objective was to specify the benefits of randomization in estimating causal effects of treatme...

Perspectives on Sexuality Sex Research - an Overview Part 1. Biological Perspectives: Sexual Anatomy 1. Sexual Physiology 2. Human Reproduction 3. Birth Control 4. Abortion Part 2. Developmental Perspectives: Childhood S...

The development ofa 2 l-item self-report inventory for measuring the severity of anxiety in psychiat-ric populations i described. The initial item pool f86 items was drawn from three preexisting scales: the Anxiety Check...

In recent studies of the structure of affect, positive and negative affect have consistently emerged as two dominant and relatively independent dimensions. A number of mood scales have been created to measure these facto...

Five studies tested two general hypotheses: Individuals differ in their use of emotion regulation strategies such as reappraisal and suppression, and these individual differences have implications for affect, well-being,...

Reliability coefficients often take the form of intraclass correlation coefficients. In this article, guidelines are given for choosing among six different forms of the intraclass correlation for reliability studies in w...

INTRODUCTION: Behavioral science provides the foundation for physical activity interventions. The mediating variable framework is used to assess the status of physical activity interventions and the roles that are, or co...

Programmed cell death (PCD) plays a key role in developmental biology and in maintenance of the steady state in continuously renewing tissues. Currently, its existence is inferred mainly from gel electrophoresis of a poo...

Here is a book that challenges the very basis of the way psychologists have studied child development. According to Urie Bronfenbrenner, one of the world's foremost developmental psychologists, laboratory studies of the ...