In research, a confound is a. the difficulty we experience in thinking of counter-examples to our beliefs. b. an alternative explanation for an outcome that comes about because more than one thing changed at the same time. c. when the outcome of a study contradicts the researcher's hypothesis. d. an instance when the actual outcome is contrary to the probabilistic prediction.

Brainliest to who answers! what will always cause a supply curve to shift to the left?

Which two statements regarding graduated driver licensing are true? select all the correct answers. gdl new drivers gain skills under low-risk conditions. gdl new drivers gain skills under high-risk conditions. gdl laws are the same across states. gdl laws vary across states. gdl does not need parental supervision and coaching.

The ideas of hammond are most clearly an example of which of the following mid-19th century developments? (5 points) the increasingly liberal nature of slavery after the south enforced stronger slave codes the growing use by northern antislavery activists of moral arguments the increasing number of freed slaves in southern states as a result of gradual emancipation laws the growing tendency of southern slaveholders to use the paternal ethos to justify slavery