v Psychometric questionnaires [PQ] are important elements of psychological studies

v Standard PQ form : Paperq Several submissions per dayq Major adherence problems

v PQ apps may help!v Target PQ : Interpersonal circumplex

q Interpersonal perceptions along two axes: Cold-warm and assured-unassured

Muhsin Ugur1 Dinesh Majeti1 Allison Kalpakci2 Carla Sharp2 Ioannis Pavlidis1

1Department of Computer Science, University of Houston 2Department of Psychology, University of Houston

v Study adherence tends to increase significantly when moving from paper to mobile formsv Moral: Do not innovate without a good reason

qThe traditional design in mobile form (e-Paper) gave the best results

v Expand the study to pathological subjects

v Analyze the disorder factor in study adherence

e-Paperv ObjectivesqDevelop an app for interpersonal circumplexqTest conventional and novel interfaces

against the paper controlv Methods

q Adherence [on-time reporting? yes/no]q Time performanceq Redundant tapsq Subjective feedback

• NASA TLX• Usability questionnaire

v n=20 healthy adults (8 M, 12 F)v Ages ranged from 21 to 53v Crossover designv Treatments

qPaper – Cqe-Paper Interface – M1qRow-Column Interface – M2qTwo-slider Interface – M3

v Each treatment lasted a dayv Subject had to circumplex six times / day

Background User Interface Designs Results

Experimental Design

Conclusion Future Work

Objectives and Methods M1

Row-Column

M2

Two-slider

M3

Paper

C

AdherenceHigher adherence with mobile interfaces

05

1020

30C

ompl

etio

n tim

e [s

]

C M1 M2 M3

14

18

2020

1525

35

**

02

46

810

Red

unda

nt ta

ps

M1 M2 M3

107 112 104

05

1015

20Score

C M1 M2 M3

93

107

112

104

***

05

1015

20Score

C M1 M2 M3

93 107 112

104

**

05

1015

20Score

C M1 M2 M3

93 107 112 104**

12

34

5Score

M1 M2 M3

107 112 104*

e-Paper took less time to complete No significant differences

e-Paper was better Two-slider was better

e-Paper was easier to learnTwo-slider was better

NASA TLX - Performance Usability Questionnaire

Time Performance Redundant Taps

NASA TLX - Physical Demand NASA TLX - Temporal Demand

68

85 8982

0

20

40

60

80

100

120

C M1 M2

Succ

ess

coun

t

**

M1M3

Mobile Designs for Circumplex – A field evaluation study