Table 3.

Mean readability statistics. Entertainment versus social networking versus utility: comparison of mean reading grade level (RGL), mean word count, and mean reading ease between entertainment, social networking, and utility apps. The P values for the analysis of variance (ANOVA) tests show that there is no significant difference in the mean RGL and reading ease between the app categories, but there is a significant difference in mean word count.

Statistic	All appsa	Entertainment	Social networking	Utility	P value
N	64	44	7	13	--
Mean RGLb	12.78	12.84	12.7	12.62	.93
Mean word count	2425	2546	3493	1038	.02
Mean Flesch reading ease	42.73	42	46.46	43.37	.31

^aColumn summarizes results for all apps included in the analysis; it was not included in the significance test for the P value in the last column.

^bRGL: reading grade level.