Table 3. Confirmatory factor analyses item loadings, and Cronbach coefficient alpha for 4 factors. (NValidation = 366).

Item	Factor1 Show approval	Factor2 Argue	Factor 3 Gain attention	Factor 4 Entertain
To entertain				0.93
To share a funny joke				0.77
To add my thoughts to a tweet		0.70
To argue against a tweet that I disagree with		0.71
To introduce my followers to the tweeter	0.71
To show my support for the tweeter	0.73
To show my followers that I like the tweeter	$0.86$
To gain new followers			0.81
To get someone's attentions			0.83
Cronbach’s alpha	0.81	0.60	0.84	0.80
Spearman-Brown co-efficient	-	0.69	0.89	0.86
Average variance extracted	0.60	0.42	0.67	0.73

Colored cells indicate factor loadings ≥ 0.7 for the corresponding items (Column 1). Cronbach’s alpha (above) indicate reliability coefficients for each factor in the Confirmatory Factor Analysis. Spearman-Brown co-efficient is reported for two-item factors. Average variance extracted explain the extent to which each factor explains the variance of its indicators.