Individual Differences Research

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Individual Differences Research > Volume 11, Issue 2 (2013) > 121-132

The Cell Phone Reliance Scale: Validity and Reliability

Toru Sato, Brittany A. Harman, Lea T. Adams, James V. Evans,  Michael K. Coolsen

Abstract

Two studies were conducted to create a Cell Phone Reliance scale and examine its reliability and validity. In the first study, 195 participants responded to 30 potential items on a six point frequency scale along with other questions regarding their cell phone use. After discarding items with low corrected item total correlations, a full 26 item scale and an abbreviated 7 item scale were created. Both scales were found to have good internal consistency and correlated with numerous other variables regarding cell phone use, supporting its construct validity. In the second study (N = 149), the test-retest reliability of the two scales were examined. The results revealed that both scales had good temporal stability. The general discussion focuses on the limitations of this study as well as future uses of these scales.