Reference no: EM132887116

1. Which of the following best describes external validity?

a.The extent to which our tests measure what they are supposed to measure.

b.The extent in which we can generalize our study results to other people, places, and settings.

c.The extent to which the tests are adequate measures of the constructs of interest.

d.The extent in which an independent variable affects the dependent variable, rather than other confounding variables.

2. Jarena wants to conduct an experiment where she gives her three individual sunflower plants differing amounts of sunlight. Sunflower #1 will receive a low amount of light, Sunflower #2 will receive a medium amount of light, and Sunflower #3 will receive a high amount of light. Jarena wants to know if these different amounts of light will cause different growth rates in her three sunflowers. What is the independent variable in Jarena's study?

a.The three different sunflower plants.

b.The amount of water each plant receives.

c.The growth rate of the sunflower plants.

d.The amount of light each sunflower plant receives.

3. As the average daily temperature in New York City decreases, the number of persons who are observed wearing sweaters in the workplace increases. This is an example of a __________ correlation.

a.positive

b.zero

c.causal

d.negative