Table 2.

A linear mixed effects regression model of task-relatedness and freedom of movement thought dimension predicting momentary affect

IVa	βb	SEc	95% CIc	χ2(1)d	pd
TR	− 0.26	0.03	[− 0.31, − 0.21]	99.38	< 0.001
FM	0.10	0.03	[0.05, 0.15]	17.32	< 0.001
TR × FM	0.04	0.02	[0.001, 0.08]	3.97	0.046
TR at non-FM	− 0.28	0.07	[− 0.41, − 0.14]	16.19	< 0.001
TR at FM	− 0.09	0.06	[− 0.22, 0.04]	1.97	0.160

The first three rows present the three independent variables’ effects on the dependent variable of momentary affect (ranging from 1 = extremely negative to 7 = extremely positive). The three fixed effects independent variables included task-relatedness (TR; ranging from 1 = completely on-task to 7 = completely off-task), freedom of movement (FM; ranging from 1 = not at all freely moving to 7 = extremely freely moving), and their interaction (TR x FM). The last two rows present results from two linear mixed effects regression models that follows up on the significant TR x FM interaction effect, testing the effect of task-relatedness on affect separately implemented for thoughts that are not freely moving (non-FM; below 4 on the scale) and freely moving (FM; above 4 on the scale)

^aIV = independent variables

^bβ = standardized coefficient

^cSE = standard error of the mean and 95% CI = confidence interval, associated with the standardized coefficient

^dp-value associated with the χ²-statistic, which tests the current model against a null model without the independent variable of interest