Abstract

The present study aims to adapt Game Addiction Inventory developed by Wong and Hodgins (2013) to Turkish culture and conduct its validity and reliability studies. The analyzes are conducted on a data set of 509 people. For validity studies of the inventory, first order and second order confirmatory factor analyzes are conducted and its correlation values with a similar inventory are examined in terms of convergent validity. The first order confirmatory factor analysis has found fit indices as χ2/sd = 3.01; RMSEA=0.063; CFI=0.97; NFI=0.95; IFI=0.97; RFI=0.95; GFI=0.86; AGFI=0.84; SRMR=0.055; and second order confirmatory factor analysis results in χ2=1466.23; sd=428; χ2/sd=3.43; RMSEA=0.069; CFI=0.96; IFI=0.96; RFI=0.94; NFI=0.95; SRMR=0.060. The correlation between data obtained from Digital Game Addiction Inventory- Short Form are examined for fit indices. The correlation values are obtained between .44 and .67 for sub-scales and as .75 for the whole inventory. Within the scope of reliability studies of the inventory, Cronbach alpha values are calculated between .65 and .86 for sub-scales and as .92 for the whole inventory. In addition, the composite reliability values of the scale were calculated and these values were between .66 and .87 for the subscales; it was found to be .94 for the overall scale. In order to determine the discriminative levels of items in the inventory and their predictive powers of total score within reliability studies, corrected item-total correlation (rjx) is calculated and compared with 27% of upper- lower groups and independent samples t test, which have determined that t values of 27% of lower (n=137) and upper (n=137) groups regarding the differences in item scores range between 6.90 and 21.25 (sd=272; p<.001), and the values regarding corrected item-total test correlation range between .20 and .70. In addition, the reliability of the inventory is examined through split-half reliability formula. Spearman-Brown prediction formula have found rtt = .88. In conclusion, data obtained from validity and reliability studies can be evaluated to point the sufficiency of the inventory to determine game addiction levels of adults.