The _____ scale of measurement is the most precise scale because its numbers have numerical value and ratios are meaningful

a. interval c. ratio
b. nominal d. ordinal

C
A ratio scale has equal intervals between the points on the scale and also has an absolute zero point. This makes it the most precise of the measurement scales.

Psychology

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Which of the following is a painless procedure in which a technician uses a probe to beam high-frequency sound waves at the mother’s abdomen?

a. Triple screen test b. Amniocentesis c. Chorionic villus sampling d. Ultrasonography

Psychology

Social psychologists use the term ____ to describe the feeling of fear that people sometimes have that they will confirm a certain stereotype

a. "discontinuity effect" b. "aversive racism" c. "stereotype threat" d. "self-defeating prophecy"

Psychology