Question

Use SPSS for this Application Exercise: It has been demonstrated that when participants must memorize a list of words serially in the order of presentation), words at the beginning and end of the list are remembered better than words in the middle. This observation has been called the serial-position effect. A sample of participants were presented three sets of eight different words in sequential order. The following data represent the number of errors made in recalling the words. What can be conclude with an a of 0.01? beginning middle end 3 7 4 a) What is the appropriate test statistic? ---Select--- b) Input the appropriate value(s) to make a decision about Ho. p-value = ; Decision: ---Select--- c) Using the SPSS results, compute the corresponding effect size(s) and indicate magnitude(s). n2 = ; --Select-- d) Make an interpretation based on the results. O At least one of the sets differs on errors made. O None of the sets differ on errors made. Submit Answer

Answer 1

a) repeated measure design ANOVA:

b)

Applying ANOVA :

Source of Variation	SS	df	MS	F	P-value
Block	7.6333	9	0.8481	0.7459	0.6644
treatment	10.8667	2	5.4333	4.7785	0.0216
Error	20.4667	18	1.1370
Total	38.9667	29

p value =0.0216 ; Decision: fail to reject Ho

c)

eta² =SSR/(SSR+SSE) =10.8667/(10.8667+20.4667) =0.3468

large effect size

d)

None of the sets differ on errors made.