6강
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( , , ) .
1 (reliability)1. . ,. . , . (consistency) (stability) , .
2. ( or ) (inter-rator Reliability)( , 2001: 94)(inter-rator Reliability)( , 2001: 94)(inter-rator Reliability)( , 2001: 94)(inter-rator Reliability)( , 2001: 94) 2
. .
( - , Test-retest Method)( - , Test-retest Method)( - , Test-retest Method)( - , Test-retest Method) ,
, .
M .E .M .O
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(Multiple Forms Technique)(Multiple Forms Technique)(Multiple Forms Technique)(Multiple Forms Technique)
.
(equivalent-form)(equivalent-form)(equivalent-form)(equivalent-form) . , . .
(Split-half Method)(Split-half Method)(Split-half Method)(Split-half Method) , . .
(Cronbach's Alpha) or(Cronbach's Alpha) or(Cronbach's Alpha) or(Cronbach's Alpha) or . ) , . ) . ) . , . , , (homogeneity) .
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, . , ) 6 1~3 4~6
) 1 2,3,4,5,6 , 2 3,4,5,6 , 5 6 , .
3. . . . . .
2 (validity)1.
. , . (accuracy) . , . ) (face validity, )) (content validity)
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) (criterion validity) ) / (construct validity)
2. 1) (Content Validity)1) (Content Validity)1) (Content Validity)1) (Content Validity) , .
(representativeness) . , .
2) (Criterion-related Validity)2) (Criterion-related Validity)2) (Criterion-related Validity)2) (Criterion-related Validity) . , . .
(Concurrent Validity)(Concurrent Validity)(Concurrent Validity)(Concurrent Validity) .
ex) IQ IQ IQ . , , .
(Predictive Validity)(Predictive Validity)(Predictive Validity)(Predictive Validity) .
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, ) . , . ) .
(Known-groups Technique)(Known-groups Technique)(Known-groups Technique)(Known-groups Technique) . , ) , , . ) .
(Validity by Criterion-question)(Validity by Criterion-question)(Validity by Criterion-question)(Validity by Criterion-question) , . , ) . . ) . . .
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3) (Construct Validity)3) (Construct Validity)3) (Construct Validity)3) (Construct Validity) . , . . , , , , , , .
(Validity Based on Theory)(Validity Based on Theory)(Validity Based on Theory)(Validity Based on Theory) , . .
- (Multitrait-multimethod Technique)- (Multitrait-multimethod Technique)- (Multitrait-multimethod Technique)- (Multitrait-multimethod Technique) Campbell Fiske(1959)
. - (convergent-discriminant concept of validity) - (multitrait-multimethod
matrix technique) . (trait=property)
, (method) -. , . , ( ).
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.
(Factor Analysis)(Factor Analysis)(Factor Analysis)(Factor Analysis) , (factor) . , . , . .
3 1. , . , , . , , . . , . (extraneous
factors), ( , ), , . ( , clerical error) .
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.
2. ( ) (systematic error)(systematic error)(systematic error)(systematic error) .
, (biased) . .
(random error)(random error)(random error)(random error) , , , , , . , , , .
3. . . . . .
. (triangulation) . . .
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4 ( , stability; , consistency), (, accuracy). . , . , . . . . . , . ,
, .
( , 2004: 148)
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51)
2)
3) ,
4) , . . .