Groups: 1 = 5-25 years, 2 = 26-59 years, 3= 60-92 years What can you conclude about mean differences for Groups 2 and 3? Group of answer choices: 1. FIQ for Group 2 differs from the FIQ of Group 3 2. FIQ for Group 2 is higher than the FIQ of Group 3 3. FIQ for Group 2 is lower than the FIQ of Group 3 4. FIQ for Group 2 is not different from the FIQ of Group 3

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Groups: 1 = 5-25 years, 2 = 26-59 years, 3= 60-92 years
What can you conclude about mean differences for Groups 2 and 3?
Group of answer choices:
1. FIQ for Group 2 differs from the FIQ of Group 3
2. FIQ for Group 2 is higher than the FIQ of Group 3
3. FIQ for Group 2 is lower than the FIQ of Group 3
4. FIQ for Group 2 is not different from the FIQ of Group 3
+ Oneway
Descriptives
WAIS-R full scale IQ
95% Confidence Interval for
Mean
N
Mean
Std. Deviation Std. Error Lower Bound Upper Bound
Minimum
Maximum
Post Hoc Tests
5-25 Years
185
107.15
11.946
878
105.41
108.88
77
146
26-59 Years
380
108.40
12.840
.659
107.11
109.70
73
150
110.65
114.15
Multiple Comparisons
60-92 Years
185
112.40
12.052
.886
81
143
Total
750
109.08
12.572
459
108.18
109.98
73
150
Dependent Variable: WAIS-R full scale IQ
Bonferroni
ANOVA
Mean
Difference (I-
J)
95% Confidence Interval
WAIS-R full scale IQ
() Subjects age in years (J) Subjects age in years
Std. Error
Sig.
Lower Bound Upper Bound
Sum of
Squares
df
Mean Square
F
Si.
5-25 Years
26-59 Years
-1.257
1.115
.780
-3.93
1.42
Between Groups
2905.502
2
1452.751
9.398
<.001
-5.254
1.293
<.001
60-92 Years
-8.36
-2.15
Within Groups
115472.857
747
154.582
26-59 Years
5-25 Years
1.257
1.115
.780
-1.42
3.93
Total
118378.359
749
60-92 Years
-3.997
.001
-6.67
1.115
-1.32
ANOVA Effect Sizes
60-92 Years
5-25 Years
5.254
1.293
<.001
2.15
8.36
26-59 Years
3.997
1.115
.001
1.32
6.67
95% Confidence Interval
Point
Estimate
Lower
Upper
*. The mean difference is significant at the 0.05 level.
WAIS-R full scale 1Q Eta-squared
.025
.006
.049
Epsilon-squared
.022
.004
.046
Omega-squared Fixed-
.022
.004
.046
effect
Omega-squared
Random-effect
.011
.002
.024
a. Eta-squared and Epsilon-squared are estimated based on the fixed-effect model.
Transcribed Image Text:+ Oneway Descriptives WAIS-R full scale IQ 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum Post Hoc Tests 5-25 Years 185 107.15 11.946 878 105.41 108.88 77 146 26-59 Years 380 108.40 12.840 .659 107.11 109.70 73 150 110.65 114.15 Multiple Comparisons 60-92 Years 185 112.40 12.052 .886 81 143 Total 750 109.08 12.572 459 108.18 109.98 73 150 Dependent Variable: WAIS-R full scale IQ Bonferroni ANOVA Mean Difference (I- J) 95% Confidence Interval WAIS-R full scale IQ () Subjects age in years (J) Subjects age in years Std. Error Sig. Lower Bound Upper Bound Sum of Squares df Mean Square F Si. 5-25 Years 26-59 Years -1.257 1.115 .780 -3.93 1.42 Between Groups 2905.502 2 1452.751 9.398 <.001 -5.254 1.293 <.001 60-92 Years -8.36 -2.15 Within Groups 115472.857 747 154.582 26-59 Years 5-25 Years 1.257 1.115 .780 -1.42 3.93 Total 118378.359 749 60-92 Years -3.997 .001 -6.67 1.115 -1.32 ANOVA Effect Sizes 60-92 Years 5-25 Years 5.254 1.293 <.001 2.15 8.36 26-59 Years 3.997 1.115 .001 1.32 6.67 95% Confidence Interval Point Estimate Lower Upper *. The mean difference is significant at the 0.05 level. WAIS-R full scale 1Q Eta-squared .025 .006 .049 Epsilon-squared .022 .004 .046 Omega-squared Fixed- .022 .004 .046 effect Omega-squared Random-effect .011 .002 .024 a. Eta-squared and Epsilon-squared are estimated based on the fixed-effect model.
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