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Intellectual Abilities:
Perceptual Speed

- General Information
- Raw Constructs Created in BASE
- Additional Information

Perceptual Speed:
General Information

When? | Time 1 | Time 2 | Time 3 | Time 4 | Time 5 | Time 6 | Time 7
Where? | Intake Assessment (EE) Intensive Protocol (IP) | Intake Assessment (EE) | Intake Assessment (EE) Intensive Protocol (IP) | Intake Assessment (EE) Intensive Protocol (IP) | Intake Assessment (EE) Intensive Protocol (IP) | Intake Assessment (EE) Intensive Protocol (IP) | Intake Assessment (EE)
Questionnaire | EE: Intake Assessment p. 16 IP: Cognitive battery | EE: Intake Assessment p. 21 | EE: Intake Assessment p. 20 IP: Cognitive battery | EE: Intake Assessment p. 20 IP: Cognitive battery | EE: Intake Assessment p. 20 IP: Cognitive battery | EE: Intake Assessment p. 31 IP: Cognitive battery | EE: Intake Assessment p. 33
SIR Data bank | EE: ZKP rec/table 10 (Z1ee) IP: Psycho rec/table 18 (C1speed) rec/table 19 (C1con) | EE: ZKP rec/table 110 (Z2ee) | EE: ZKP rec/table 210 (Z3ee) IP: Psycho rec/table 218 (C3speed) rec/table 219 (C3con) | EE: ZKP rec/table 310 (Z4ee) IP: Psycho rec/table 318 (C4speed) rec/table 319 (C4con) | EE: ZKP rec/table 410 (Z5ee) IP: Psycho rec/table 418 (C5speed) rec/table 419 (C5con) | EE: ZKP rec/table 510 (Z6ee) IP: Psycho rec/table 518 (C6speed) rec/table 519 (C6con) | EE: ZKP rec/table 610 (Z7ee)

The cognitive test battery in BASE contains 14 tests measuring five intellectual abilities (perceptual speed, reasoning, memory, knowledge, fluency). At the 5th measurement point 8 out of the original 14 tests were included in the assessment.

Perceptual speed was measured by the following three tests:
a) Digit Letter test (Lindenberger, Mayr, & Kliegl, 1993), which is a substitution test akin to the Digit Symbol Substitution subtest of the WAIS (Wechsler, 1982). In BASE, participants had to name letters instead of writing symbols. Version I was used in the intake assessment (EE), version II in the intensive protocol (IP).
b) Digit Symbol Substitution (Wechsler, 1955).
c) A computerized 32-item version of the Identical Pictures test from the ETS (Ekstrom, French, Harman, & Derman, 1976).
The test scores for (a), (b) and (c) correspond to the number of correct answers.

For more detailed information about the procedures, see Lindenberger et al. (1993) or the "Intelligenz und Kognition" documentation at the Max Planck Institute for Human Development.

Literature: Lindenberger, Mayr, & Kliegl, 1993; Lindenberger & Reischies, 1999; Lindenberger & Baltes, 1997; Reischies & Lindenberger, 1996; Smith & Baltes, 1996, 1999.

(See also General Intelligence, Knowledge, Fluency, Memory, Reasoning).

- General Information
- Raw Constructs Created in BASE
- Additional Information

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Perceptual Speed:
Raw Constructs Created in BASE

Note:
The prefix k indicates that data were administered in the Intake Assessment (EE),
c that data were administered in the Intensive Protocol (IP).

Constructs | Construct names Time 1 | Construct names Time 2 | Construct names Time 3 | Construct names Time 4 | Construct names Time 5 | Construct names Time 6 | Construct names Time 7
Perceptual speed
1. | c1fuspd | - | - | - | - | - | -
Mean (unit-weighted composite) of (z-standardized) c1ipnce c1dl2nce c1dsnce | - | - | - | - | - | -
2. | c1spd | - | c3spd | c4spd | c5spd | - | -
Mean (unit-weighted composite) of (z-standardized) c1ipnce c1dl2nce | - | Mean (unit-weighted composite) of (z-standardized) c3ipnce c3dl2nce | Mean (unit-weighted composite) of (z-standardized) c4ipnce c4dl2nce | Mean (unit-weighted composite) of (z-standardized) c5ipnce c5dl2nce | - | -
Digit symbol substitution
1. | c1dsnce | - | - | - | - | - | -
Sum score with estimates
2. | c1dsnc | - | - | - | - | - | c7dsnc
Sum score
Identical pictures
1. | c1ipnce | - | c3ipnce | c4ipnce | c5ipnce | - | -
Sum score with estimates
2. | c1ipnc | - | c3ipnc | c4ipnc | c5ipnc | c6ipnc | -
Sum score
Digit letter
1. | c1dl2nce | - | c3dl2nce | c4dl2nce | c5dl2nce | - | -
Sum score with estimates
2. | c1dl2nc | - | c3dl2nc | c4dl2nc | c5dl2nc | c6dl2nc | -
Sum score
3. | k1z64est | k2z64est | k3z64est | k4z64est | k5z64est | - | -
Sum score with estimates
4. | k1z64sum | k2z64sum | k3z64sum | k4z64sum | k5z64sum | k6z64sum | k7z64sum
Sum score
5a. | k1z64cd | k2z64cd | k3z64cd | k4z64cd | k5z64cd | k6z64cd | k7z64cd
Number during 3rd minute
5b. | k1z64bd | k2z64bd | k3z64bd | k4z64bd | k5z64bd | k6z64bd | k7z64bd
Number during 2nd minute
Digit letter: Learning potential
6a. | k1z64lp1 | k2z64lp1 | k3z64lp1 | k4z64lp1 | - | k6z64lp1 | k7z64lp1
Difference: Number during 2nd minute - number during 1st minute *
6b. | k1z64lp2 | k2z64lp2 | k3z64lp2 | k4z64lp2 | - | k6z64lp2 | k7z64lp2
Difference: Number during 3rd minute - number during 2nd minute
Digit letter: Missing table values
7. | - | k2z64nm | k3z64nm | k4z64nm | k5z64nm | k6z64nm | k7z64nm
Number

* See additional information 4a.

- General Information
- Raw Constructs Created in BASE
- Additional Information

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Additional Information:
Speed Constructs in BASE

Constructs | Construct names Time 1 | Construct names Time 2 | Construct names Time 3 | Construct names Time 4 | Construct names Time 5 | Construct names Time 6 | Construct names Time 7
Digit letter
3a. | z1e64x1t / i | z2e64x1t / i | z3e64x1t / i | z4e64x1t / i | z5e64x1t / i | z6e64x1t / i | z7e64x1t / i
(Raw) table / item after 60 sec
3b. | z1e64x2t / i | z2e64x2t / i | z3e64x2t / i | z4e64x2t / i | z5e64x2t / i | z6e64x2t / i | z7e64x2t / i
(Raw) table / item after 120 sec
3c. | z1e64x3t / i | z2e64x3t / i | z3e64x3t / i | z4e64x3t / i | z5e64x3t / i | z5e64x3t / i | z6e64x3t / i
(Raw) table / item after 180 sec
4a. | z1e64a | z2e64a | z3e64a | z4e64a | z5e64a | z6e64a | z7e64a
(Raw) Number after 60 sec
4b. | z1e64b | z2e64b | z3e64b | z4e64b | z5e64b | z6e64b | z7e64b
(Raw) Number after 120 sec (accumulated)
4c. | z1e64c | z2e64c | z3e64c | z4e64c | z5e64c | z6e64c | z7e64c
(Raw) Number after 180 sec (accumulated)

- General Information
- Raw Constructs Created in BASE
- Additional Information

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