What were the degrees of freedom in this analysis?
A researcher is examining the link between pet ownership (three categories: no pet, dog, cat) and depression (two categories: Yes, No). In the Results section of her publication, you read the information: ?2(2, N = 800) = 6.72, p < .05.
Ans: 2
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Topics such as energy, endangered species, hunger, and the like that are related to the whole planet are most closely associated with
a. gender-equity education. b. global education. c. multicultural education. d. law-related education.
Which of the following types of data organization schemes shows the division of the unit into its component parts?
a. The bar graph. b. The sector chart. c. The line graph. d. The organization chart.
Why does invented spelling require more advanced language skills than mock writing?
What will be an ideal response?
A researcher is carrying out a study of the effects of teaching different approaches to argumentation on writing persuasive essays. He pretests the participants by having them write three persuasive essays prior to the study, and three essays after the study. He has two individuals grade all the essays. The two individuals were given no training prior to the study. The essays from the students in the study actually looked worse rather than better after the study. Based on the information presented above, what threat to internal validity could explain the contradictory finding?
a. Selection b. Maturation effect c. Instrumentation d. History effect