spearman & Guttmamn

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spearman & Guttmamn

abdalla alsmadi
Hi everybody
I have 40 dichotomously scored items , for reliability purposes I tried different options offered by SPSS : even though alpha was (0.69), split half, ….. but the correlation between the two forms was low spearman Broun and Guttmann indicators were negative and surprisingly low
Can anybody please give explanation and suggestions
Advice appreciated
 

Abdalla Alsmadi
college of graduate studies
Arabian Gulf University - Bahrain
Tel: 0097317239999 ext. 676