Statistical Methods for Psychology

13.23 Three-way on early experience:

Source df SS MS F

Experience 3 2931.667 977.222 3.544
Intensity 2 2326.250 1163.125 4.218
Cond Stim 1 4563.333 4563.333 16.550
E 3 I 6 67.083 11.181 , 1
E 3 C 3 4615.000 1538.333 5.579
E 3 C 2 55.417 27.708 , 1
E 3 I 3 C 6 121.250 20.208 , 1
Error 96 26,471.000 275.740

Total 119 41,151.000

*p,.05 [F.05(1,96) 5 3.94; F.05(2,96) 5 3.09;

F.05(3,96) 5 2.70; F.05(6,96) 5 2.19]

=

371.956 21221221 29.311 2

1971.778 1 29.311

=.13

vDA^2 =

SSDA 21 d 2121 a 212 MSerror

SStotal 1 MSerror

=

356.044 21221 29.311 2

1971.778 1 29.311

=.15

vA^2 =

SSarea 21 a 212 MSerror

SStotal 1 MSerror

=

188.578 21221 29.311 2

1971.778 1 29.311

=.06

vD^2 =

SSdelay 21 d 212 MSerror

SStotal 1 MSerror

hDA^2 =

SSDA

SStotal

=

371.956

1971.778

=.19

hA^2 =

SSArea

SStotal

=

356.044

1971.778

=.18

All of these groups differed from each other at p#.05.

13.29 Simple effects on data in Exercise 13.28:

Source df SS MS F

Condition 1 918.750 918.75 34.42*

Cond @ Inexp. 1 1014.00 1014.00 37.99*

Cond @ Exp. 1 121.50 121.50 4.55*

Cond 3 Exper 1 216.750 216.75 8.12*

Other Effects 9 2631.417

Error 36 961.000 26.694

Total 47 4727.917

*p,.05 [F.05(1.36) 5 4.12]

Answers 747

Results for Exercise 13.25

Tests of Between-Subjects Effects

Dependent Variable: Trials to reversal

Type III Sum
Source of Squares df Mean Square F Sig.

Corrected Model 141.130a 8 17.641 8.158 .000
Intercept 1153.787 1 1153.787 533.554 .000
DOSE 133.130 2 66.565 30.782 .000
DELAY 2.296 2 1.148 .531 .590
DOSE 3 DELAY 5.704 4 1.426 .659 .622
Error 214.083 99 2.162
Total 1509.000 108
Corrected Total 355.213 107

aRSquared 5 .397 (Adjusted RSquared 5 .349)

Multiple Comparisons

Dependent Variable: Trials to reversal

Tukey HSD

Mean

(I) dosage of (J) dosage of Difference Std.

epinephrine epinephrine (I 2 J) Error Sig.

0.0 mg/kg 0.3 mg/kg 2 1.67* .35 .000

1.0 mg/kg 1.03* .35 .010

0.3 mg/kg 0.0 mg/kg 1.67* .35 .000

1.0 mg/kg 2.69* .35 .000

1.0 mg/kg 0.0 mg/kg 2 1.03* .35 .010

0.3 mg/kg 2 2.69* .35 .000

Based on observed means.

* The mean difference is significant at the .05 level.

There are significant main effects for all variables with

a significant Experience 3 Conditioned Stimulus inter-

action.

13.25 Analysis of Epineq.dat (see below).

13.27 Tukey on Dosage data from Exercise 13.25: