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EDFR 6700  Index Page

1. Define the term descriptive statistics.
2. Differentiate descriptive and inferential statistics in terms of purpose.

5. Explain the concept of central tendency^5.1 and describe the unique characteristics of the mean^5.2, median, and mode as measures of central tendency. Interpret mean scores from a norm-referenced^5.3 and criterion-referenced^5.4perspective.
6. Explain the concept of variation^6.1 and describe the unique characteristics of the standard deviation^6.2,. Interpret the standard deviation^6.3 when used to describe the variation of sets of scores.

9. Explain the concept of relationship^9.1.
10. Describe the characteristics of a correlation coefficient in terms of strength^10.1 and direction^10.2. Interpret correlation coefficients^10.3 when used to describe the relationships between variables.

2. State the purpose of inferential statistics.

5. Define the term level of significance^5.1 and describe^5.2 its use in inferential statistics. Describe the formats used to report the level of significance associated with an inferential test.

7. Explain the meaning of the term statistically significant. Differentiate statistical significance from educational (i.e., practical) significance, and describe the ways researchers report the latter.

15. Interpret the inferential analyses^15.1 found in a research report in terms of the type of the inference (i.e., a comparison between the mean scores for two or more groups; a relationship between two or more variables)^15.2, statistical significance^15.3, and the relationship between the results and the research problem^15.4. (See the Assignments for this chapter for information on Objectives 15.2-15.4)