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. 2020 Oct 20;7(10):e21496. doi: 10.2196/21496

Table 4.

Simple slopes for loneliness, mental health, and college adjustment outcomes at week 4 among first-year college students receiving the Nod intervention (experimental) versus waitlist (control).

Outcome r of simple slopea t value df P value
Loneliness (UCLA-8b )




Experimental –0.09 –0.84 209 .40

Control 0.30 3.81 209 <.001
Depression (PHQ-9c )




Experimental –0.04 –0.44 209 .66

Control 0.23 2.60 209 .01
Sleep quality (PSQId )




Experimental –0.02 –1.24 208 .22

Control 0.04 2.89 208 .004
Social support (CITe subscale)




Experimental –0.02 –1.41 209 .16
Control –0.07 –4.60 209 <.001
Campus belonging (from SERUf )




Experimental 0.03 1.54 209 .13

Control –0.05 –2.70 209 .007
Social Adjustment to College (SACQg subscale)




Experimental –0.11 –3.73 209 <.001

Control –0.18 –7.05 209 <.001
Intention to return to college (NSSEh )




Experimental 1.15 (1.01-1.32) 2.16 209 .03

Control 0.89 (0.80-1.00) –2.01 209 .05

aExcept for intention to return to college, which was assessed based on odds ratio (95% CI).

bUCLA-8: UCLA Loneliness Scale, 8-item.

cPHQ-9: Patient Health Questionnaire 9-item.

dPSQI: Pittsburgh Sleep Quality Index (higher values indicate poorer quality sleep).

eCIT: Comprehensive Inventory of Thriving.

fSERU: Student Experiences in the Research University Questionnaire.

gSACQ: Student Adaptation to College Questionnaire.

hNSSE: National Survey for Student Engagement (1=will definitely return; 0=all other responses).