Which one of the following strategies is not a basic control strategy in single-subject research?
a. withdrawing the treatment
b. repeating treatments
c. using multiple baselines
d. changing more than one variable at a time
d
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When a group of individuals is tested in a series of treatment conditions over time, which factor can cause progressive improvement in performance from treatment to treatment and thus provide an alternative explanation for the results?
a. history b. selection bias c. practice d. fatigue
Imagine you are a psychologist researching the effects of parents helping children with homework on the children's grades. What would you do in order to conduct an experiment to study this topic? What is the independent variable?
What is the dependent variable? What will be an ideal response?
According to Piaget, at what age do children make an important cognitive advance toward becoming more systematic and logical thinkers?
7 years || 8 years || 9 years || 10 years || || ||
Which of the following characteristics is most assured when scientists use operational definitions to communicate?
A. reliable measurement B. meaningfulness C. clarity of meaning D. valid measurement