A test is reliable when it A. measures achievement

B. gives similar scores every time it is used.

C. measures intelligence.

D. measures what it is supposed to measure

Select the correct answer. in the image, if the washcloth represents consumed food, which organ of the digestive system correctly represents the action performed by the hands? hands squeezing water from a washcloth a. esophagus b. large intestine c. liver d. mouth

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

Wich level of organization includes all the other levels or organizations