Question

In a true experiment, participants __________ a particular level of a variable and then are measured on another variable.

are measured on

meet the criterion of

request to be assigned to

are randomly assigned to

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Question 31 pts

Researchers say that a correlation is significant if ____.

there is a large probability (.50 or larger) that this correlation is greater than that computed in standard tables of what is called the chi-square distribution

there is a small probability, such as 5% or 1%, that you could have obtained a correlation this big if in fact there had been no correlation in the population at large

the dots appear to form a straight line on the scatter diagram

the correlation is .05 or greater (or below −.05 if negative)

Answer 1

Answer 1

In a true experiment, participants are randomly assigned to a particular level of a variable and then are measured on another variable.

Random assignment into experimental and control groups is the basis of a true experiment.

Answer 2

Researchers say that a correlation is significant if

There is a small probability, such as 5% or 1%, that you could have obtained a correlation this big if in fact there had been no correlation in the population at large

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