Some individuals have the ability to recall accurately vast amounts of autobiogr
ID: 3152500 • Letter: S
Question
Some individuals have the ability to recall accurately vast amounts of autobiographical information without mnemonic tricks or extra practice. This ability is called HSAM, for Highly Superior Autobiographical Memory. A study recruited adults with confirmed HSAM and control individuals of similar age without HSAM. All study participants were given a battery of cognitive and behavioral tests in the hope of finding out how this extraordinary ability works. Here are the participants' results for a verbal association test:
(a) Calculate:
x¯H (±0.001) =
x¯C (±0.001) =
sH (±0.001) =
sC (±0.001) =
SE (±0.001) =
t (±0.001) =
df (±0.1) =
P (±0.001 (Use software)) =
(b) Do individuals with HSAM have significantly greater abilities on verbal association tests than typical individuals:
NOTE: The numerical values in this problem have been modified for testing purposes.Some individuals have the ability to recall accurately vast amounts of autobiographical information without mnemonic tricks or extra practice. This ability is called HSAM, for Highly Superior Autobiographical Memory. A study recruited adults with confirmed HSAM and control individuals of similar age without HSAM. All study participants were given a battery of cognitive and behavioral tests in the hope of finding out how this extraordinary ability works. Here are the participants' results for a verbal association test:
HSAM 1 7 2 2 2 3 6 1 7 Control 1 6 1 1 2 2 3 0 3 3 4 4 1 6 6 8 0 3(a) Calculate:
x¯H (±0.001) =
x¯C (±0.001) =
sH (±0.001) =
sC (±0.001) =
SE (±0.001) =
t (±0.001) =
df (±0.1) =
P (±0.001 (Use software)) =
(b) Do individuals with HSAM have significantly greater abilities on verbal association tests than typical individuals:
No YesExplanation / Answer
Std error = 0.972
n = 26 and d = 24
Mean diff = 0.268
t = 0.268/0.972 = 0.2757
H0: muH <= muc
Ha: mu H > mu C
Right tailed test.
p = 0.392569
As p >0.05 (alpha level) accept null hypothesis.
There is no statistical evidence to show that mu H > mu C
Hence answer is
No.
Mean 3.44400 3.17600 SD 2.46900 2.30100 SEM 0.82300 0.55807 N 9 17Related Questions
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