A researcher plans a special series of classroom lessons designed to increase students' verbal skills. A control group does not have the lessons. Which of the following would most likely be threats to internal validity?
a. History
b. Hawthorne effect
c. Teacher expectations effect
d. Mortality
e. b and c
E
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This personal characteristic involves the ability to overcome inevitable setbacks, and will help you succeed when the going gets tough
a. motivation b. persistence c. self-reliance d. intelligence e. self-esteem
Transition assessment and traditional assessment are similar in nature
Indicate whether the statement is true or false.
Nondirective supervision is
a. seldom used by supervisors. b. readily used by supervisors. c. used to manipulate a group to a predetermined decision. d. used to create an approach that is open and visible to the teachers.
Calculating the product of ______ to three decimal places, the result should be rounded to ______.
a. .75*3.67; 2.76 b. .95*.76; .73 c. 1.07*2.20; 2.36 d. 1.50*.33; .50