Essential Statistics for the Behavioral Sciences
2nd Edition
ISBN: 9781506386300
Author: Gregory J. Privitera
Publisher: SAGE Publications, Inc
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Chapter 11, Problem 22CAP
a)
To determine
To find: Whether the mean recall letters are same for each delays.
b)
To determine
To find: The result of Tukey HSD post test.
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2. Iconic memory is a type of memory that holds visual information for about half a second (0.5 second).
To demonstrate this type of memory, participants were shown three rows of four letters for 50
milliseconds. They were then asked to recall as many letters as possible, with a 0-, 0.5-, or 1.0-second
delay before responding. Researchers hypothesized that longer delays would result in poorer recall. The
number of letters correctly recalled is given in the table for this between-subjects designs.
G=114
ΣΧ2 = 878
N=18
0
12
11
6
10
8
7
T = 54
M=9
SS=28
Delay Before Recall (in seconds)
0.5
8
4
10
6
3
5
T = 36
M = 6
SS = 34
1.0
4
b. Compute eta-squared to measure the effect size.
WOH
4
2
5
7
2
T=24
M=4
SS = 18
a. Do the data indicate that delay to recall had a significant impact on number of words recalled? Use the
hypothesis testing steps & alpha = .05. Compute any necessary post-hoc tests.
iconic memory is a type of memory that holds visual information for about half a second (0.5 second). To demonstrate this type of memory, participants were shown three rows of four letters for 50 milliseconds. They were then asked to recall as many letters as possible, with a 0-, 0.5-, or 1.0-second delay before responding. Researchers hypothesized that longer delays would result in poorer recall. The number of letters correctly recalled is given in the table. Delav Before Recall 0 0.5 1
12 8 4
11 4 4
6 10 2
10 6 5
8 3 7
7 5 2(a) Complete the F table. (b) Compute Tukey's HSD post hoc test and interpret the results.
iconic memory is a type of memory that holds visual information for about half a second (0.5 second). To demonstrate this type of memory, participants were shown three rows of four letters for 50 milliseconds. They were then asked to recall as many letters as possible, with a 0-, 0.5-, or 1.0-second delay before responding. Researchers hypothesized that longer delays would result in poorer recall. The number of letters correctly recalled is given in the table. Delav Before Recall 0 0.5 1
12 8 4
11 4 4
6 10 2
10 6 5
8 3 7
7 5 2(a) Complete the F table. (b) Compute Tukey's HSD post hoc test and interpret the results.
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Chapter 11 Solutions
Essential Statistics for the Behavioral Sciences
Ch. 11 - Prob. 1FPCh. 11 - Prob. 2FPCh. 11 - Prob. 3FPCh. 11 - Prob. 4FPCh. 11 - Prob. 5FPCh. 11 - Prob. 6FPCh. 11 - Prob. 7FPCh. 11 - Prob. 8FPCh. 11 - Prob. 9FPCh. 11 - Prob. 10FP
Ch. 11 - Prob. 11FPCh. 11 - Prob. 12FPCh. 11 - Prob. 13CAPCh. 11 - Prob. 14CAPCh. 11 - Prob. 15CAPCh. 11 - Prob. 16CAPCh. 11 - Prob. 17CAPCh. 11 - Prob. 18CAPCh. 11 - Prob. 19CAPCh. 11 - Prob. 20CAPCh. 11 - Prob. 21CAPCh. 11 - Prob. 22CAPCh. 11 - Prob. 23CAPCh. 11 - Prob. 24CAPCh. 11 - Prob. 25CAPCh. 11 - Prob. 26CAPCh. 11 - Prob. 27PRCh. 11 - Prob. 28PRCh. 11 - Prob. 29PRCh. 11 - Prob. 30PRCh. 11 - Prob. 31PRCh. 11 - Prob. 32PR
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