Plots of Relation Among Reading, Video Games Score, and Intelligence   20

16:34 Saturday, October 18, 2003

Plot of vgame*read.  Legend: A = 1 obs, B = 2 obs, etc.

vgame

95 ˆ

A

A                     A

90 ˆ

A          A

A     A

A

A       A

A A   A  A  A

B    B       A

85 ˆ                                               A

A           A AA

A  A  A              A

A    A                       A   A

A              AA A

A  A        A     A

A                 A          A      A

80 ˆ                            AA A                     A

A    A AB

A B  A    A            A

A                   A      A     A    A

B          A       AA

A          A     A A      A      A

A   A   A                          A

75 ˆ                               A               A  A    AA

A      A          A

A                                  A

A     A

A    A

A

A                 A

70 ˆ

A

A

A

65 ˆ

Šƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒ

65         70         75         80         85         90         95

Plots of Relation Among Reading, Video Games Score, and Intelligence   21

16:34 Saturday, October 18, 2003

Plot of intel*read.  Legend: A = 1 obs, B = 2 obs, etc.

intel

90 ˆ

A

80 ˆ                              A

A           A        A

A                      A A

A             A

A                 A

A              A       A

70 ˆ                              B  A                   A

A A                   A

A              AA

A          A  A  A            A     A

A       A       A  A

A       A               AA     BA

A           BA A   A     A

60 ˆ                       A A   A           A  AA      A

A                     A A  BA  A

A A A         A

A      A    A              A

A                AA

AA   A

A A   A         A   A       A  A

50 ˆ                                      A            A

A A       A

A

A    A       A     A

A      A

A

40 ˆ                                      A

A

A

30 ˆ

Šƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒ

65         70         75         80         85         90         95

Plots of Relation Among Reading, Video Games Score, and Intelligence   22

16:34 Saturday, October 18, 2003

Plot of intel*vgame.  Legend: A = 1 obs, B = 2 obs, etc.

intel

90 ˆ

A

80 ˆ                                                          A

A        A          A

A  A     A

AA

A    A

AA      A

70 ˆ                            AA         A        A

A    A         A

A     AA

BA   A      A      A

A        A  AA

A AAA     A A      A

AA AB   A         A

60 ˆ                  A        A       A A     A      A   A

A  A AA A A  A

A  A     A   A

A               A    A  A

A      AA

AA                          A

AAA    AA  A  A

50 ˆ               A A

A         A    A

A

A     A       AA

A                  A

A

40 ˆ                       A

A

A

30 ˆ

Šƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒƒƒƒƒƒƒƒƒˆƒƒ

65         70         75         80         85         90         95

vgame

Correlation Between Reading and Video Game Score             23

16:34 Saturday, October 18, 2003

The CORR Procedure

Simple Statistics

Variable         N        Mean     Std Dev         Sum     Minimum     Maximum

read           100    80.29300     5.02353        8029    67.90000    90.80000

vgame          100    79.93300     5.41388        7993    66.50000    91.70000

Pearson Correlation Coefficients, N = 100

Prob > |r| under H0: Rho=0

<.0001

vgame      -0.41994       1.00000

<.0001

Correlation Between Reading and Intelligence               24

16:34 Saturday, October 18, 2003

The CORR Procedure

Simple Statistics

Variable         N        Mean     Std Dev         Sum     Minimum     Maximum

read           100    80.29300     5.02353        8029    67.90000    90.80000

intel          100    60.12500    10.10870        6013    34.80000    86.40000

Pearson Correlation Coefficients, N = 100

Prob > |r| under H0: Rho=0

0.1248

intel      -0.15449       1.00000

0.1248

Correlation Between Video Game Score and Intelligence           25

16:34 Saturday, October 18, 2003

The CORR Procedure

2  Variables:    vgame    intel

Simple Statistics

Variable         N        Mean     Std Dev         Sum     Minimum     Maximum

vgame          100    79.93300     5.41388        7993    66.50000    91.70000

intel          100    60.12500    10.10870        6013    34.80000    86.40000

Pearson Correlation Coefficients, N = 100

Prob > |r| under H0: Rho=0

vgame         intel

vgame       1.00000       0.72290

<.0001

intel       0.72290       1.00000

<.0001