1St Phase of Rate of Feeding Study

1st phase of Rate of Feeding Study

Statistics ran on 11 October 2007

Meal Duration (seconds)

One Way Repeated Measures Analysis of VarianceThursday, October 11, 2007, 11:13:25 AM

Data source: Data 1 in exp2to5controls

Normality Test:Failed(P = 0.032)

Equal Variance Test:Passed(P = 0.095)

Treatment Name N MissingMeanStd DevSEM

e3md 20 0 1230.050 385.394 86.177

e4md 20 0 1532.500 433.644 96.966

e5md 20 0 1515.600 391.188 87.472

e6md 20 0 1642.550 349.603 78.174

Source of Variation DF SS MS F P

Between Subjects 19 5815312.050 306069.055

Between Treatments 3 1858419.850 619473.283 6.0780.001

Residual 57 5809383.650 101919.011

Total 79 13483115.550

The differences in the mean values among the treatment groups are greater than would be expected by chance; there is a statistically significant difference (P = 0.001). To isolate the group or groups that differ from the others use a multiple comparison procedure.

Power of performed test with alpha = 0.050: 0.911

All Pairwise Multiple Comparison Procedures (Student-Newman-Keuls Method) :

Comparisons for factor:

ComparisonDiff of MeanspqPP<0.050

e6md vs. e3md 412.500 4 5.778 <0.001 Yes

e6md vs. e5md 126.950 3 1.778 0.425 No

e6md vs. e4md 110.050 2 1.542 0.280 Do Not Test

e4md vs. e3md 302.450 3 4.237 0.011 Yes

e4md vs. e5md 16.900 2 0.237 0.868 Do Not Test

e5md vs. e3md 285.550 2 4.000 0.007 Yes

A result of "Do Not Test" occurs for a comparison when no significant difference is found between two means that enclose that comparison. For example, if you had four means sorted in order, and found no difference between means 4 vs. 2, then you would not test 4 vs. 3 and 3 vs. 2, but still test 4 vs. 1 and 3 vs. 1 (4 vs. 3 and 3 vs. 2 are enclosed by 4 vs. 2: 4 3 2 1). Note that not testing the enclosed means is a procedural rule, and a result of Do Not Test should be treated as if there is no significant difference between the means, even though one may appear to exist.

Number of FL consumed

One Way Repeated Measures Analysis of VarianceThursday, October 11, 2007, 11:16:15 AM

Data source: Data 1 in exp2to5controls

Normality Test:Passed(P > 0.050)

Equal Variance Test:Passed(P = 0.097)

Treatment Name N MissingMeanStd DevSEM

e3nFL 20 0 27.550 13.264 2.966

e4nFL 20 0 42.800 13.821 3.090

e5nFL 20 0 44.900 13.822 3.091

e6nFL 20 0 49.450 12.955 2.897

Source of Variation DF SS MS F P

Between Subjects 19 10669.550 561.555

Between Treatments 3 5412.650 1804.217 32.947<0.001

Residual 57 3121.350 54.761

Total 79 19203.550

The differences in the mean values among the treatment groups are greater than would be expected by chance; there is a statistically significant difference (P = <0.001). To isolate the group or groups that differ from the others use a multiple comparison procedure.

Power of performed test with alpha = 0.050: 1.000

All Pairwise Multiple Comparison Procedures (Student-Newman-Keuls Method) :

Comparisons for factor:

ComparisonDiff of MeanspqPP<0.050

e6nFL vs. e3nFL 21.900 4 13.235 <0.001 Yes

e6nFL vs. e4nFL 6.650 3 4.019 0.017 Yes

e6nFL vs. e5nFL 4.550 2 2.750 0.057 No

e5nFL vs. e3nFL 17.350 3 10.485 <0.001 Yes

e5nFL vs. e4nFL 2.100 2 1.269 0.373 No

e4nFL vs. e3nFL 15.250 2 9.216 <0.001 Yes

Grams of Froot Loops Consumed

One Way Repeated Measures Analysis of VarianceThursday, October 11, 2007, 11:17:26 AM

Data source: Data 1 in exp2to5controls

Normality Test:Passed(P > 0.050)

Equal Variance Test:Passed(P = 0.094)

Treatment Name N MissingMeanStd DevSEM

e3gFL 20 0 5.995 2.930 0.655

e4gFL 20 0 9.050 2.976 0.665

e5gFL 20 0 9.475 2.790 0.624

e6gFL 20 0 10.385 2.609 0.583

Source of Variation DF SS MS F P

Between Subjects 19 481.307 25.332

Between Treatments 3 217.532 72.511 32.448<0.001

Residual 57 127.375 2.235

Total 79 826.215

The differences in the mean values among the treatment groups are greater than would be expected by chance; there is a statistically significant difference (P = <0.001). To isolate the group or groups that differ from the others use a multiple comparison procedure.

Power of performed test with alpha = 0.050: 1.000

All Pairwise Multiple Comparison Procedures (Student-Newman-Keuls Method) :

Comparisons for factor:

ComparisonDiff of MeanspqPP<0.050

e6gFL vs. e3gFL 4.390 4 13.133 <0.001 Yes

e6gFL vs. e4gFL 1.335 3 3.994 0.018 Yes

e6gFL vs. e5gFL 0.910 2 2.722 0.059 No

e5gFL vs. e3gFL 3.480 3 10.411 <0.001 Yes

e5gFL vs. e4gFL 0.425 2 1.271 0.373 No

e4gFL vs. e3gFL 3.055 2 9.139 <0.001 Yes

Seconds per FL consumed

One Way Repeated Measures Analysis of VarianceThursday, October 11, 2007, 11:18:29 AM

Data source: Data 1 in exp2to5controls

Normality Test:Failed(P = <0.001)

Equal Variance Test:Passed(P = 0.231)

Treatment Name N MissingMeanStd DevSEM

e3sperFL 20 0 53.343 26.887 6.012

e4sperFL 20 0 38.474 16.596 3.711

e5sperFL 20 0 35.314 9.316 2.083

e6sperFL 20 0 34.985 10.441 2.335

Source of Variation DF SS MS F P

Between Subjects 19 14686.889 772.994

Between Treatments 3 4527.042 1509.014 10.750<0.001

Residual 57 8001.643 140.380

Total 79 27215.573

The differences in the mean values among the treatment groups are greater than would be expected by chance; there is a statistically significant difference (P = <0.001). To isolate the group or groups that differ from the others use a multiple comparison procedure.

Power of performed test with alpha = 0.050: 0.998

All Pairwise Multiple Comparison Procedures (Student-Newman-Keuls Method) :

Comparisons for factor:

ComparisonDiff of MeanspqPP<0.050

e3sperFL vs. e6sperFL 18.358 4 6.929 <0.001 Yes

e3sperFL vs. e5sperFL 18.029 3 6.805 <0.001 Yes

e3sperFL vs. e4sperFL 14.869 2 5.612 <0.001 Yes

e4sperFL vs. e6sperFL 3.489 3 1.317 0.623 No

e4sperFL vs. e5sperFL 3.160 2 1.193 0.403 Do Not Test

e5sperFL vs. e6sperFL 0.329 2 0.124 0.930 Do Not Test

A result of "Do Not Test" occurs for a comparison when no significant difference is found between two means that enclose that comparison. For example, if you had four means sorted in order, and found no difference between means 4 vs. 2, then you would not test 4 vs. 3 and 3 vs. 2, but still test 4 vs. 1 and 3 vs. 1 (4 vs. 3 and 3 vs. 2 are enclosed by 4 vs. 2: 4 3 2 1). Note that not testing the enclosed means is a procedural rule, and a result of Do Not Test should be treated as if there is no significant difference between the means, even though one may appear to exist.