Marjorie conducted a study of students' views of race relations in America. She did not, however, share the characteristics of her participants. Marjorie has demonstrated
a. a threat to internal validity.
b. a threat to external validity.
c. a threat to statistical conclusion validity.
d. a threat to reliability.
b
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Research findings indicate that the poor academic performance of children who are deaf is primarily due to their
a. difficulties in reading and writing. b. high levels of frustration. c. lack of intelligence. d. poor relationships with teachers.
Which of the following questions cannot be addressed through the use of a correlation coefficient?
A) Do taller students tend to like science more than shorter students? B) Do students who read more books tend to be less interested in reading? C) Do students who like math tend to get better grades? D) Do students in Ms. Martin's class tend to score higher than students in Ms. Tucker's class the standardized math tests?
How can the care teacher continue the outdoor play when the children come inside?
a. He can ask the children to bring in sticks, leaves, and stones and make a display on the science table. b. He can let them wear their muddy shoes while crossing the room and talk about mud c. He could catch a wild squirrel and put it in a cage. d. He could leave the door open.
Suggested comments for reinforcing desired behavior are: "You are a very intelligent girl."
and "You are a good boy." Indicate whether the statement is true or false