When a tool measures what it is supposed to measure, the tool is said to be
A. reliable.
B. valid.
C. practical.
D. All of these.
Answer: B
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Which condition is an inherited blood disorder that causes mild or severe anemia due to reduced hemoglobin and fewer red blood cells than normal??
A) ?dyscrasia B) ?leukemia C) ?megaloblastic anemia D) ?thalassemia
Which condition is characterized by the abnormal implantation of a fertilized ovum outside the uterus??
A) ectopic pregnancy B) hyperemesis gravidarum C) placenta previa D) hydatidiform mole
Smoking-related strokes are related to
a. the adhesion of platelets facilitated by carbon monoxide and nicotine c. nicotine causing the smaller blood vessels in the brain to burst b. aneurysms due to tar buildup d. nicotine weakening the muscle layer in the smaller blood vessels
A/An ________ is a chemical combination of two or more atoms that form a specific chemical compound
Fill in the blank(s) with correct word