A Comparison Between the Scales in Cloninger's
Temperament and Character Inventory (TCI)
and the Corresponding Preliminary IPIP Scales
Measuring Similar Constructs

SCALE NAMES

   
IPIP TCI
Variety-seeking NS1 Exploratory excitability
Recklessness NS2 Impulsiveness
Extravagance NS3 Extravagance
Rebelliousness NS4 Disorderliness

Neuroticism HA1 Worry & pessimism
Harmavoidance HA2 Fear of uncertainty
Social discomfort HA3 Shyness with strangers
Low self-efficacy HA4 Fatigability & asthenia

Sentimentality RD1 Sentimentality
Friendliness RD2 Warm communication
Self-disclosure RD3 Attachment
Dependence RD4 Dependence

Initiative P1 Eagerness of effort
Competence P2 Work hardened
Achievement-striving P3 Ambitious
Hard-working P4 Perfectionist

Satisfaction S1 Responsibility
Optimism S2 Purposefulness
Resourcefulness S3 Resourcefulness
Self-acceptance S4 Self-acceptance
Impulse control S5 Enlightened second nature

Tolerance C1 Social acceptance
Empathy C2 Empathy
Trust C3 Helpfulness
Compassion C4 Compassion
Morality C5 Pure-hearted conscience

Imagination ST1 Self-forgetful
Romanticism ST2 Transpersonal identification
(No ST3 scale) ST3 Spiritual acceptance
Conservatism ST4 Enlightened
Femininity ST5 Idealistic
---------------------- ----------------------------------
Total/Mean

Number
of Items

IPIP TCI
7+3 =10
3+5 = 8
4+6 =10
1+6 = 7
2+2 = 4
4+4 = 8
6+4 =10
4+2 = 6

5+5 =10
4+7 =11
3+7 =10
3+4 = 7
5+5 =10
3+4 = 7
5+4 = 9*
3+4 = 7

7+3 =10
7+1 = 8
5+5 =10
7+3 =10
5+5 =10
1+4 = 5
5+5 =10
0+6 = 6

6+4 =10
8+2 =10
6+3 = 9*
7+1 = 8
9+1 =10
9+1 =10
8+2 =10
6+2 = 8

1+9 =10
1+7 = 8
5+5 =10
3+2 = 5
5+5 =10
1+4 = 5
2+6 = 8*
2+8 =10
5+5 =10
5+6 =11

6+6 =12
4+4 = 8
8+0 = 8
4+1 = 5
6+6 =12
4+4 = 8
3+7 =10
2+5 = 7
6+4 =10*
3+5 = 8

8+3 =11
10+0=10
7+2 = 9*
8+0 = 8
-------
5+3 = 8
6+3 = 9
6+4 =10
6+2 = 8*
5+5 =10
------------- ------------
289 247

Mean Item
Intercorrelation

IPIP TCI
.30 .25
.21 .30
.58 .37
.30 .27

.38 .27
.28 .30
.38 .49
.28 .46

.28 .23
.34 .38
.38 .55
.17 .18

.36 .35
.26 .28
.26 .28
.27 .28

.20 .31
.19 .40
.33 .34
.21 .32
.27 .32

.18 .30
.32 .29
.19 .18
.30 .53
.17 .16

.25 .27
.24 .29
-- .52
.19 .64
.20 .32
------- --------
.28 .34

Coefficient
Alpha

IPIP TCI
.80 .72
.72 .75
.85 .83
.80 .68

.86 .80
.78 .75
.86 .87
.77 .85

.80 .71
.84 .86
.86 .86
.67 .58

.85 .84
.75 .75
.78 .79
.78 .76

.72 .78
.71 .77
.83 .72
.69 .82
.78 .84

.72 .77
.79 .67
.73 .64
.81 .88
.66 .58

.78 .79
.74 .77
-- .90
.71 .95
.65 .82
-------- --------
.77 .78


Correlation

IPIP vs. TCI
.72 [.95]
.60 [.82]
.60 [.71]
.60 [.81]

.74 [.89]
.61 [.80]
.81 [.94]
.53 [.66]

.67 [.89]
.79 [.93]
.78 [.91]
.56 [.90]

.64 [.76]
.56 [.75]
.68 [.87]
.65 [.84]

.59 [.79]
.69 [.93]
.73 [.94]
.47 [.62]
.72 [.89]

.67 [.90]
.64 [.88]
.59 [.86]
.68 [.81]
.54 [.87]

.65 [.83]
.58 [.77]
----
.52 [.63]
.52 [.71]
-------------
.64 [.83]


Note.
All analyses are based on the responses of 501 adult participants from the Eugene-Springfield Community Sample. [Values in brackets are the correlations between the corresponding TCI and IPIP scales when corrected for attenuation due to scale unreliability.]

* These scales include some items that have higher correlations with other scales.


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