Calculating and testing the Pearson correlation involves calculating nine things: ?X2, (?X)2, ?Y2, (?Y)2, SSX, SSY, SPXY, r, and the critical values. How many of these nine things can be a negative number?
a. 0
b. 1
c. 2
d. 3
d. 3
You might also like to view...
What is the teacher’s role during one-on-one reading conferences?
a. Observe students’ oral reading b. Discuss students’ journal responses c. Help with students’ understanding of the routines of independent reading d. All of the above
Teachers who assess young children:
A.must share information gathered about the group of children with all other staff members and other families in the program. B. need to maintain confidentiality and privacy regarding all observation and assessment processes. C. protect the privacy of children in all areas, but their photographs and images. D. show concern about a child’s welfare by refusing to reveal confidential information to agencies and individuals who may act in the child’s interest.
Three of the following teachers should help their students solve problems more effectively? Which teacher probably will not?
a. Ms. Azari teaches students abstract principles of logic (e.g., "If all As are Bs and all Bs are Cs, then..."). b. Ms. Bennington has students work on difficult problems in small, cooperative groups. c. When students struggle with arithmetic word problems, Mr. Costas gives them subtle hints about how to proceed. d. Mr. Driver presents many ill-defined problems in biology and asks students to make each one more specific and clear-cut.
Communicable illnesses that are transmitted by the fecal-oral method include:
A) pinworms and hepatitis B) colds and chicken pox C) ringworm and impetigo D) all answers are correct