https://github.com/tjmahr/psynom2015

Poster presented at 56th Annual Meeting of the Psychonomic Society (Nov. 2015 in Chicago, IL)
https://github.com/tjmahr/psynom2015

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Poster presented at 56th Annual Meeting of the Psychonomic Society (Nov. 2015 in Chicago, IL)

• Host: GitHub
• URL: https://github.com/tjmahr/psynom2015
• Owner: tjmahr
• License: mit
• Created: 2015-12-07T18:15:04.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2015-12-15T16:00:24.000Z (about 9 years ago)
• Last Synced: 2023-06-28T12:20:40.513Z (over 1 year ago)
• Language: TeX
• Size: 20.5 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Psynom15

Poster presented at 56th Annual Meeting of the Psychonomic Society (Nov. 2015 in Chicago, IL)

[![poster thumbnail](poster/poster_thumbnail.png)](poster/TristanMahr-Psychonomics.pdf)

## Repository overview

* `data`: data-sets used in the models

* `poster`: the poster as printed and presented at the conference

* `R`: helper R script

* `reports`: a "full-text" write-up companion to the poster

  * `report.md`: [Final, rendered form of write-up](reports/report.md)

  * `report.Rmd`: RMarkdown file used to generate write-up (text + code to run)

  * `compile.R`: R script to build the html version of write-up

## Official conference related info

> Title: Using Language Input and Lexical Processing to Predict 

Vocabulary Size 

> Authors: Tristan Mahr and Jan Edwards

> Your Presentation Time: 6:00-7:30 p.m.

> Poster Viewing Time: 4:00–7:30 p.m.

> Session Information: Poster Session I, Thursday Evening, November 19, 

2015, Salon B 

> Abstract: Children learn words by listening to caregivers, and the 

quantity and quality of early language input predict later language 

development. Recent research suggests that lexical processing efficiency 

may mediate the relationship between input and vocabulary growth. We 

asked whether language input and lexical processing at 28-39 months 

predicted vocabulary size one year later in 180 preschoolers. Input was 

measured using adult word counts, conversational turn counts, and 

proportion of meaningful speech and television in the child’s 

environment. Lexical processing was measured using accuracy and rate of 

change on a four-image looking-while-listening eyetracking task. 

Structural equation modeling showed that both input and lexical 

processing predicted vocabulary size, but most of the effect of input 

was mediated by lexical processing. Further, amount of television in the 

environment negatively influenced vocabulary size. These results further 

support the hypothesis that children must efficiently process ambient 

language input to capitalize on learning opportunities. 

> Abstract Number: 1165 

> **Abstract Numbering** You will note that the abstract number assigned to your

poster is a 4-digit number. The first digit codes which session you were

assigned to (1–5; 1 = Thursday evening; 2 = Friday noon; 3 = Friday evening; 4 =

Saturday noon; 5 = Saturday evening). The last 3 digits range between 001 and

200. These digits code your poster location (i.e., 001 is poster #1 within the

session; 002 is poster #2, etc.). So, for example, 4016, is in the Saturday noon

session, board #16.  The boards will be grouped serially in the room to help

participants locate specific presentations.