where does blues music originate?
a). it was a combination of work songs and christian hymns
b). it was a combination of work songs, field hollers and shouts with typically lamenting lyrics
c). it was a combination of traditional folk music mixed with christian hymns
d). it was a combination of complexly rhythmic music traditional work songs

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?

Karin bought illegal firearms at a gun show. at her trial, she alleged that she had committed this crime because her boyfriend had threatened to harm her and her two daughters if she did not. her lawyer asked the judge to instruct the jury that the prosecution had an obligation to prove beyond a reasonable doubt that karin had acted freely. instead, the judge told the jury that karin had the burden of proving duress by a preponderance of the evidence. who is correct?

Steven pinker states that an important difference exists between men and women in: