Spelling difficulty persists into the time course of sentence production.
1 Nottingham Institute of Psychology, Nottingham Trent University
Participants completed a sentence production task with spelling prompts.
Figure 1: Schematic trial flow for an example trial.
Target-image spelling diversity was manipulated within item: high diversity vs low diversity.
| Spelling alternative | Frequency | Proportion | Spelling diversity |
|---|---|---|---|
| colander | 30 | 40.5% | 2.44 |
| collander | 16 | 21.6% | |
| collinder | 13 | 17.6% | |
| colinder | 7 | 9.5% | |
| calender | 1 | 1.4% | |
| caulinder | 1 | 1.4% | |
| colandor | 1 | 1.4% | |
| colender | 1 | 1.4% | |
| colindar | 1 | 1.4% | |
| colonder | 1 | 1.4% | |
| colunder | 1 | 1.4% | |
| culinder | 1 | 1.4% |
next to trials and vertical above/below trials; horizontal trials allowed either left-to-right or right-to-left descriptions.| Item | High-diversity target | High prompts | Low-diversity target | Low prompts | Other object |
|---|---|---|---|---|---|
| 1 |
|
correct: piranha plausible: pirahna incorrect: prianha |
|
correct: jellyfish plausible: jelyfish incorrect: jellyfihs |
|
| 2 |
|
correct: pomegranate plausible: pomegranite incorrect: poemgranate |
|
correct: watermelon plausible: watermelan incorrect: waetrmelon |
|
| 3 |
|
correct: meringue plausible: merangue incorrect: merignue |
|
correct: biscuit plausible: biscuitt incorrect: bsicuit |
|
| 4 |
|
correct: colander plausible: collander incorrect: colanedr |
|
correct: bagpipes plausible: bagpieps incorrect: bapgipes |
|
Plausible spellings were accepted much more often for high-diversity than low-diversity targets. Aligned means correct or plausible prompts accepted.
Figure 2: Spelling-prompt acceptance and spelling-decision time by spelling diversity.
Writers showed a strong left-to-right ordering bias in design-relevant horizontal trials (99.6-100.0%; 95% PI lower bounds ≥ 98.6%), so spelling difficulty and priming did not change word-order choices. The filler exception was lower-left starts: 66.0% left-to-right, 95% PI [54.0, 76.6].
Figure 3: High-minus-low diversity hesitation probability across horizontal and vertical trials.
Spelling difficulty persists into the time course of sentence production.