The concrete operational ability to classify objects simultaneously on the basis of more than one category is called
a. multiple classification. c. criteria assessment.
b. dimensional classification. d. labeling.
A
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Obsessions are to __________ as compulsions are to __________
a. anxiety; depression b. thoughts; behaviors c. anxiety relief; anxiety production d. actions; ideas e. checking; doubt
In vitro fertilization involves combining the sperm and egg in a laboratory dish
Indicate whether the statement is true or false
In a frequency histogram, frequency is usually marked along the ________
a. horizontal (x) axis b. diagonal c. vertical (y) axis d. bar heights
A researcher investigating the effect of peer tutoring on reading skills studies two groups of children in remedial reading classes. One group receives peer tutoring three times a week for three months, the other group does not
At the end of the three months, the two groups are tested in reading skills. What is the independent variable in this experiment? a. peer tutoring versus no tutoring b. reading skills level at the beginning of the experiment c. reading skills level at the end of the experiment d. reading skills test itself