Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond
Created: January 20, 2013
Last Modified: January 20, 2023 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script implements a demonstration of a Timed Likert scale as used by:
Ferrando, P.J. & Lorenzo-Seva, U. (2007). A Measurement Model for Likert Responses That Incorporates Response Time. MULTIVARIATE BEHAVIORAL RESEARCH, 42, 675–706.
The likert scale implemented in this script has 5 anchors like the one used by Ferrando & Lorenzo-Seva (2007). According to the article "A five-point response is the upper limit recommended by Fazio (1990) when the information provided by the latencies is taken into account. (p.677/678)"
NOTE: The build-in Inquisit likert scale used in this script does NOT let participants change their original response.
1 minute
Participants are asked to select a response button on a five-point- Likert Scale in response to a given statement.
The reciprocals of the reaction times (converted from ms to s, and corrected for large and small reaction times are calculated for each question (see Ferrando & Lorenzo-Seva, 2007)
File Name: timedlikert_summary*.iqdat
| Name | Description |
|---|---|
| inquisit.version | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| startDate | Date the session was run |
| startTime | Time the session was run |
| subjectId | Participant ID |
| groupId | Group number |
| sessionId | Session number |
| elapsedTime | Session duration in ms |
| completed | 0 = Test was not completed 1 = Test was completed |
File Name: timedlikert_raw*.iqdat
| Name | Description |
|---|---|
| computer.platform | Device platform: win | mac |ios | android |
| date | Date the session was run |
| time | Time the session was run |
| subject | Participant ID |
| group | Group number |
| session | Session number |
| blockCode | Name of the current block |
| blockNum | Number of the current block |
| trialCode | Name of the current trial |
| trialNum | Number of the current trial |
| stimulusItem | The presented stimuli in order of trial presentation |
| response | The participant's response (scancode of response buttons) |
| latency | The response latency (in ms); measured from: onset of stim |
| correctedRtS | Corrected RT for large (>40) and small (< 0.5) reaction times (measured in seconds NOT ms) as suggested by Ferrando & Lorenzo-Seva (2007), p.689 |
| reciprocalRtS | The inverse of the reaction times (measured in seconds NOT ms) |
The procedure can be adjusted by setting the following parameters.
| Name | Description | Default |
|---|---|---|
| questionFontSize | Sets the fontsize of the question in canvas percentages | 5% |