A teacher observed that during the weeks when the children in her class used computer drills the boys made much higher scores on the spelling quizzes. The teacher wished to investigate this observed relationship in a systematic way. Which of the following research hypotheses would be appropriate for this investigation?
a. Computer drills are superior in teaching boys to spell.
b. Use of computer drills results in higher spelling achievement for boys than the use of traditional materials.
c. There will be no significant difference in the spelling achievement of boys taught by computer drills and those taught by traditional materials.
d. Classroom teachers do not use appropriate materials in teaching boys to spell.
e. Boys have fewer opportunities to respond and to receive reinforcement in the traditional classroom, which affects their spelling achievement.
Question 2
Children who receive immediate reinforcement will show greater gains in arithmetic achievement than children who receive delayed reinforcement. This statement presents
a. a clearly stated testable hypothesis.
b. a broad and general hypothesis which should be broken down into at least two hypotheses.
c. a hypothesis which is not consistent with the previous knowledge.
d. the objective of a study on the effect of immediate vs. delayed reinforcement.
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