Iconic memory is a type of memory that holds visual information for about half a second...

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Iconic memory is a type of memory that holds visual informationfor about half a second (0.5 seconds). To demonstrate this type ofmemory, participants were shown three rows of four letters for 50milliseconds. They were then asked to recall as many letters aspossible, with a 0-, 0.5-, or 1.0-second delay before responding.Researchers hypothesized that longer delays would result in poorerrecall. The number of letters correctly recalled is given in thetable.
Delay BeforeRecall
0 0.5 1
9 5 2
11 4 5
5 9 7
7 7 3
6 3 4
10 8 3
(a) Complete the F-table. (Round your values forMS and F to two decimal places.)
Source ofVariation SS df MS F
Betweengroups
Withingroups (error)
Total

(b) Compute Tukey's HSD post hoc test and interpret the results.(Assume alpha equal to 0.05. Round your answer to two decimalplaces.)
The critical value isÂ Â for each pairwisecomparison.

Delay BeforeRecall
0	0.5	1
9	5	2
11	4	5
5	9	7
7	7	3
6	3	4
10	8	3

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3.6 Ratings (425 Votes)

The table below gives the data which has been calculated fromthe given figures0051Total483624n666Mean864Sum Of Squares1242818223778The HypothesisH0 There is no difference between the mean recall rates for thethree different delaysHa There is a difference between the mean recall rates for thethree different See Answer

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