Psy 633 Lab 6
Chi-Square Statistic

(1)  A school district is looking to change their middle school social studies text.  The selection committee has narrowed the choice to three series (all include a 6th grade, 7th grade, and 8th grade text). The three series are distributed to 120 middle school teachers throughout the district.  After a two-week inspection period, teachers must identify which series they prefer.  The preference distribution is as follows:

Series 1    Series 2    Series 3
  54                38                28

Do the results indicate a significant preference among the three textbook series? Write the results in APA format.

(2)  A frequency distribution (see below) shows the level of self-esteem according to the level of academic performance for a sample of n = 150 ten-year-old children.  What can we conclude about the relationship between academic performance and self-esteem in ten-year-olds? Write the results in APA format.