Table 2.

Results of two-way repeated measure ANOVA for validation study affective ratings.

	Baseline			Post extinction			Post renewal
	DF	F	P	DF	F	P	DF	F	P
Intercept	1	3580.84	<0.0001	1	2223.65	<0.0001	1	1801.39	<0.0001
Stimulus	1	0.45	0.49	1	217.14	<0.0001	1	52.71	<0.0001
Mode of delivery	1	3.40	0.06	1	0.84	0.36	1	3.78	0.05
Variable by Mode of delivery	1	0.33	0.56	1	2.33	0.13	1	1.05	0.31
Nagelkerke R2 Full vs Null	0.05			0.47			0.29
Nagelkerke R2 Full vs Stimulus only	0.04			0.01			0.06

Table showing the results for each phase of the validation study of two-way repeated measures ANOVA with stimulus type, mode of delivery and stimulus type by mode of delivery interaction as predictors of mean affective ratings. Remote validation study (n = 69). Stimuli for all phases include the CS+ and CS-. Modes of delivery include app and laboratory administered a week apart in all cases. p-value of significant predictors are emphasised in bold.

Affective ratings; Composite affective rating comprising of self-reported feelings of anxiety, fear and unpleasantness for each stimulus at three time points i) before the experiment begins (baseline), after the extinction phase (post-extinction) and after day two renewal (post-renewal).

CS+; the conditional stimulus that is paired with the aversive sound during acquisition and generalisation.

CS-; the conditional stimulus that is never paired with an aversive sound.

Nagelkerke R² Full vs Null; Pseudo R² value derived by comparing the variance explained by the full model to a null model with only participant included as a random effect.

Nagelkerke R² Full vs Stimulus only; Pseudo R² value derived by comparing the variance explained by the full model to a model with only the fixed effect of stimulus included as a predictor. Thus this value represents the additional variance explained when including mode of delivery as a predictor.