Listening Span Task with Word Recall - LSPAN

Technical Manual

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond

Created: January 02, 2016

Last Modified: January 29, 2023 by K. Borchert (katjab@millisecond.com), Millisecond

Script Copyright © Millisecond Software, LLC

Background

This script implements a Listening Span Test with word recall based on:

Cai et al. (2015). Factors contributing to individual differences in the development of consecutive interpreting competence for beginner student interpreters. The Interpreter and Translator Trainer, 9(1), 104-120.

Sentences used in this script are not original to Cai et al. They are taken from the Inquisit automatedlspan.iqjs script and can easily exchanged.

Duration

15 minutes

Description

Participants hear a set of 2-6 sentences (that are either semantically correct or not) and are asked to evaluate each sentence to make sense (press 'e') or to be nonsensical (press 'i') while trying to retain the last word of each sentence for a later recall test.

After the last sentence of the current set, participants are asked to enter all the last words (2-6) into a provided textbox. The computer automatically scores the response and provides feedback to the participant. At this point, participants can request a manual rescoring for a particular response - e.g. if they made a spelling error. The data file will flag those responses with values.rescoreRequest = 1.

Procedure

tests 5 setsizes (2-6), within subjects

1. Practiceblock: 2 trials (setsize2, setsize3 => 5 practice sentences, 3 make sense, 2 do not)
(no practice information in Cai et al, 2015)
2. Testblock: 15 trials (setsize2-6 => 60 test sentences, each set size presented 3 times;
order is randomly determined; half the sentences make sense, the other do not)

Scoring:
The listeningSpanScore in this script is the overall number of correctly recalled (last) words
(see Cai et al, 2015) with a Max Score = 60. This measure is calculated independently of
sentence evaluation accuracy.

The computer automatically scores the participant's input and compares it to the correct input
for the current set of sentences.
Specifically, the computer checks for each last word if it is contained in the participant's input.
Automatic scoring works only if no spelling mistakes are made
( all input is converted to lower case letters automatically).
Participants receive performance feedback after each trial sequence and can request a manual re-scoring.

Stimuli

Sentences used in this script are not original to Cai et al. They are taken from the
Inquisit automatedlspan.iqjs script and are provided as demonstration examples only.
The sentences are read by a native speaker of American English.
You can exchange the stimuli for your own under section Editable Stimuli.

Instructions

Instructions are not original to Cai et al. They are provided by Millisecond and
can be edited under section Editable Instructions.

Summary Data

File Name: listeninspantask_wordrecall_summary*.iqdat

Data Fields

NameDescription
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
reScoring Number of times participant has requested a manual rescoring
propCorrectOverall Proportion of correctly judged sentences across all levels
propCorrectLevel2 Proportion of correctly judged sentences in level2
propCorrectLevel3 Proportion of correctly judged sentences in level3
propCorrectLevel4 Proportion of correctly judged sentences in level4
propCorrectLevel5 Proportion of correctly judged sentences in level5
propCorrectLevel6 Proportion of correctly judged sentences in level6
listeningSpanScore Overall number of correctly recalled words (Max = 60)

Raw Data

File Name: listeninspantask_wordrecall_raw*.iqdat

Data Fields

NameDescription
build Inquisit version number
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
practice 1 = practice; 0 = test
setSize Number of sentences presented (2-6)
phase 1 = Sentence Evaluations; 2 = Last Word Recall
stimulusItem The presented stimuli in order of trial presentation
sentenceItemNumber The itemNumber of the currently presented sentence
sense True (the sentence makes sense) vs. False (the sentence does not make sense)
response The participant's response
input Stores the words entered by participant
recall The cleaned-up input
correctResponse Stores the last words of the presented sentences ( compound words such as 'good-bye' or 'backyard' have been shortened to the last word such as 'bye' and 'yard')
correct The correctness of the response (1 = correct; 0 = incorrect)
latency The response latency (in ms)
countCorrect Stores the number of correctly recalled words for the current set size
recallWordEstimate Stores an estimate of the number of words recalled
intrusionWords Stores all the words that were not recognized as 'last' words from the participant's input
listeningSpanScore Overall number of correctly recalled words up this point
reScoreRequest 1 = participant requests a manual rescoring of her response
(potential spelling errors etc not considered by automatic scoring)
0 = otherwise

Parameters

The procedure can be adjusted by setting the following parameters.

NameDescriptionDefault
senseKey The 'makes sense' key ; the left response button'E'
nonsenseKey The 'does not make sense' key ; the right response button'I'