Running Head: THEORY of MIND in MIDDLE CHILDHOOD

Running Head: THEORY OF MIND IN MIDDLE CHILDHOOD

Supplemental Materials

Theory of Mind in Middle Childhood: Longitudinal Associations with Executive Function and Social Competence

by R. T. Devine et al., 2016, Developmental Psychology

Table S1. Characteristics of Eligible and Returning Participants at Wave 1 (page S2).

Table S2. Parameter Estimates for Longitudinal Model of Relations Between Executive Function and Theory of Mind in Middle Childhood (page S3).

Table S3. Parameter Estimates for Longitudinal Model of Relations Between Theory of Mind, Executive Function and Teacher-rated Social Competence (page S4).

Table S1. Characteristics of Eligible and Returning Participants at Wave 1

Wave 1 Eligible Participants (N = 184) / Wave 2 Returning Participants (N = 137)
M Age (SD) at Wave 1 / 6.05 (.34) / 6.05 (.35)
M Verbal Raw Score (SD) / 55.33 (13.37) / 56.12
Maternal Education:
No Qualifications/GCSE / 40% / 36%
A-Level or Above / 60% / 64%
Gender:
Males / 54% / 51%
Females / 46% / 49%

Table S2. Parameter Estimates for Longitudinal Model of Relations Between Executive Function and Theory of Mind

Model Parameter / Est. / S.E. / Std. Est. / 90% CI
Theory of Mind Wave 2 on:
Executive Function Wave 1 / 0.42 / 0.36 / .09 / -.04, .22
Theory of Mind Wave 1 / 0.76 / 0.26 / .26** / .12, .40
Verbal Ability Wave 1 / 0.02 / 0.01 / .20* / .06, .34
Maternal Education / 0.56 / 0.17 / .24** / .12, .36
Executive Function Wave 2 on:
Theory of Mind Wave 1 / 0.49 / 0.36 / .13 / -.03, .27
Executive Function Wave 1 / 1.23 / 0.51 / .20* / .07, .34
Verbal Ability Wave 1 / 0.02 / 0.01 / .16+ / .01, .30
Maternal Education / 0.74 / 0.25 / .24** / .11, .37
Theory of Mind Wave 2 with:
Executive Function Wave 2 / 0.21 / 0.10 / .18* / .04, .31
Theory of Mind Wave 1 with:
Executive Function Wave 1 / 0.04 / 0.01 / .43** / .32, .55
Verbal Ability Wave 1 / 2.53 / 0.46 / .53** / .43, .63
Age Wave 1 / 0.02 / 0.01 / .17* / .03, .30
Maternal Education / 0.04 / 0.02 / .23** / .10, .36
Executive Function Wave 1 with:
Verbal Ability Wave 1 / 1.08 / 0.28 / .35** / .23, .47
Age Wave 1 / 0.03 / 0.01 / .34** / .21, .46
Maternal Education / 0.03 / 0.01 / .23** / .12, .37
Verbal Ability Wave 1 with:
Age Wave 1 / 0.91 / 0.38 / .20* / .07, .33
Maternal Education / 1.81 / 0.54 / .29** / .17, .42

Note.**p < .01. *p< .05. +p < .10. On = Regression of variable onto variables listed beneath. With = Correlation of variable with variables listed beneath.

Table S3. Parameter Estimates for Longitudinal Model of Relations Between Theory of Mind, Executive Function and Teacher-rated Social Competence

Model Parameter / Est. / S.E. / Std. Est. / 90% CI
Theory of Mind Wave 2 on:
Social Competence Wave 1 / -0.001 / 0.01 / -.01 / -.15, .13
Theory of Mind Wave 1 / 0.78 / 0.27 / .27** / .12, .41
Executive Function Wave 1 / 0.41 / 0.36 / .09 / -.04, .22
Verbal Ability Wave 1 / 0.02 / 0.01 / .19* / .05, .33
Maternal Education / 0.56 / 0.17 / .24** / .12, .37
Gender / -0.10 / 0.16 / -.05 / -.16, .07
Social Competence Wave 2 on:
Theory of Mind Wave 1 / 6.80 / 2.78 / .26* / .09, .43
Social Competence Wave 1 / 0.18 / 0.09 / .19* / .04, .33
Executive Function Wave 1 / 1.79 / 3.76 / .04 / -.11, .20
Verbal Ability Wave 1 / -0.02 / 0.08 / -.03 / -.20, .14
Maternal Education / 2.31 / 1.85 / .11 / -.04, .26
Gender / 5.88 / 1.71 / .30** / .16, .43
Executive Function Wave 2 on:
Social Competence Wave 1 / 0.002 / 0.01 / .01 / -.13, .15
Executive Function Wave 1 / 1.15 / 0.49 / .19* / .06, .32
Theory of Mind Wave 1 / 0.53 / 0.37 / .13 / -.01, .29
Verbal Ability Wave 1 / 0.01 / 0.01 / .12 / -.02, .27
Maternal Education Wave 1 / 0.76 / 0.24 / .25** / .12, .37
Gender / -0.61 / 0.22 / -.20* / -.32, -.09
Theory of Mind Wave 2 with:
Social Competence Wave 2 / 1.25 / 0.77 / .16+ / .01, .32
Executive Function Wave 2 / 0.19 / 0.09 / .17* / .03, .31
Social Competence Wave 2 with:
Executive Function Wave 2 / 0.29 / 1.04 / .03 / -.13, .19
Theory of Mind Wave 1 with:
Executive Function Wave 1 / 0.04 / 0.01 / .43** / .32, .55
Social Competence Wave 1 / 1.23 / 0.38 / .33** / .19, .47
Verbal Ability Wave 1 / 2.54 / 0.46 / .53** / .43, .63
Age Wave 1 / 0.02 / 0.01 / .17* / .03, .30
Maternal Education / 0.04 / 0.02 / .23** / .10, .37
Gender / -0.01 / 0.02 / -.05 / -.19, .09
Social Competence Wave 1 with:
Executive Function Wave 1 / 0.37 / 0.23 / .15+ / .01, .30
Verbal Ability Wave 1 / 24.40 / 12.70 / .19* / .04, .35
Age Wave 1 / 0.66 / 0.38 / .18* / .02, .36
Maternal Education / 0.22 / 0.46 / .05 / -.11, .20
Gender / 0.46 / 0.48 / .09 / -.06, .25
Executive Function Wave 1 with:
Verbal Ability Wave 1 / 1.09 / 0.28 / .35** / .23, .47
Age Wave 1 / 0.03 / 0.01 / .34** / .22, .46
Maternal Education / 0.03 / 0.01 / .24** / .12, .37
Gender / -0.01 / 0.01 / -.10 / -.23, .04
Verbal Ability Wave 1 with:
Maternal Education / 1.80 / 0.54 / .29** / .17, .42
Age Wave 1 / 0.95 / 0.38 / .21** / .08, .34
Gender / -1.00 / 0.54 / -.16+ / -.29, -.02

Note.**p < .01. *p< .05. +p < .10. On = Regression of variable onto variables listed beneath. With = Correlation of variable with variables listed beneath.

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