**EDUR 8131**

**ANOVA Exercise**

__Instructions__:

Present results using the table format found in the notes entitled "Reporting Statistical Outcomes." Do not include SPSS output; present only results tables and written comments on results.

(1) Does the number of suspensions
per school vary by administrative policy? The total number of suspensions for
each school is recorded. In addition, schools are classified into one of three
types depending upon the policy used to govern how suspensions will be with
handled. The three types are simply labeled as A, B, or C.

School ID |
Number of Suspensions per Year |
Policy Type used in School |

1 |
52 |
A |

2 |
76 |
B |

3 |
11 |
C |

4 |
82 |
B |

5 |
65 |
A |

6 |
25 |
C |

7 |
34 |
B |

8 |
43 |
C |

9 |
73 |
A |

10 |
22 |
C |

11 |
99 |
B |

12 |
18 |
C |

13 |
34 |
A |

14 |
33 |
C |

15 |
53 |
A |

16 |
120 |
B |

17 |
43 |
A |

18 |
76 |
B |

(2) Does testing frequency have any
effect upon student achievement? An experiment was conducted in which students
in three classes were given tests either daily (D), every second day (2D), or
weekly (W). Achievement scores for each student are recorded based upon a final
test (scores range from a low of 1 to 100).

Student ID |
Score on Final Test |
Frequency of Testing |

1 |
100 |
D |

2 |
65 |
2D |

3 |
85 |
2D |

4 |
86 |
D |

5 |
68 |
W |

6 |
93 |
D |

7 |
90 |
W |

8 |
90 |
2D |

9 |
77 |
D |

10 |
83 |
W |

11 |
95 |
D |

12 |
75 |
2D |

13 |
96 |
D |

14 |
79 |
W |

15 |
98 |
D |

16 |
81 |
2D |

17 |
75 |
W |

18 |
78 |
2D |

(3) A researcher is interested in learning whether frequency of reading at
home to elementary-aged children produces differential effects on reading
achievement. After obtaining information from a randomly selected sample of
parents about this behavior, the following classifications and standardized
achievement scores were recorded. (Note: frequency classifications as follows: a
= less than once per month, b = once to three times per month, c = more than
three times per month.)

a: 48, 47, 37, 65, 51, 71, 33, 50, 29

b: 51, 59, 77, 49, 73, 39, 67, 44, 76, 81, 52, 44, 26

c: 81, 55, 89, 66, 39, 67, 75, 77, 59, 49, 86, 77, 81, 61, 66