World Journal of Psycho-Social Oncology Volume No 6

Original Article Open Access

Reliability and Validity of the Turkish Version of Mental Adjustment to Cancer Scale.

Aytül Karabekiroğlu, Yasemin Kemal, Servet Aker, Bahiddin Yılmaz and Bolat Özge Akyürek
World Journal of Psycho-Social Oncology 2020, 6:1



MAC scale is a widely used scale that determines the cognitive and behavioral responses of patients to a cancer diagnosis. The aim of this study was to conduct a psychometric analysis of MAC scale and explore the effect of cultural differences on factor structure.

Material and Methods

Four hundred fifty two patients were included in the study. Inclusion criteria were; patients over 18 years of age, understanding Turkish and ability to provide informed consent. Questionnaire that assesses socio-demographic data, Hospital Anxiety and Depression Scale and the MAC scale were applied. Exploratory Factor Analysis was performed to check the factor structure of the MAC scale.


The Kaiser-Meyer-Olkin (KMO) value of scale was found as 0.880. Both the scree plot and the % of variance showed that a two-factor solution is appropriate. The two-factor structure accounts for 31.25% of variance. Reliability analysis was performed to examine the internal consistency of the Turkish version of the MAC scale. The Cronbach alpha internal consistency coefficient of the MAC scale was found to be 0.796. The Cronbach alpha coefficients were: Factor 1 was 0.889; Factor 2 was 0.839.


The Turkish version of MAC scale is an applicable scale that can easily be used in oncology clinics. Summary Positive and Negative Adjustment Subscales psychometric properties appear to be comparable with the original scale. There are some cultural differences in the interpretation of items. The item “I am fatalistic” was found to be related with positive adjustment while it was related with negative adjustment in original scale.


cancer, psychology, Mental Adjustment to Cancer Scale Reliability and Validity of the Turkish Version of Mental Adjustment to Cancer Scale.

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