Have you look the book «Handbook of marketing scales». Available in any library organizando university 

Hi, Kibar:

Despite of the fact that word-of-mouth phenomenon gained unseen dimensions, only few studies have focused on its measurement and only three of them developed a word-of-mouth construct!

A recent research study developed a bi-dimensional scale which assigns usual word-of-mouth mechanisms available in online networking sites (eg: Recommend, Share, Like, Comment) into the WOM (+) - positive word-of-mouth valence dimension - respectively into the WOM (-) - negative word-of-mouth valence dimension.

The authors adapted e-WOM construct developed by Goyette et al. (2010), and obtained a word-of-mouth propensity scale, whose items include the usual online mechanisms. Their scale measures word-of-mouth propensity on 6 items grouped in 2 dimensions: positive word-of-mouth (index: Recommend, Share, Like) and negative word-of-mouth (index: negative Comment, Share negative comment, Like negative comment). Scale was tested along two studies, a German sampled one and a Romanian sampled other, highlighting adaptations to cultural specifics. High reliability was found in both studies!

• ANDREI, A. G. (2012). A WORD-OF-MOUSE APPROACH FOR WORD-OF-MOUTH MEASUREMENT. USV Annals Of Economics & Public Administration, 12(2), 87-93.

Hope this helps!

Nadeem

Thank you for the answers