The present study compares effectiveness of therapy reality, positive attitude and mixed model through group method on increasing happiness of mothers with blind children in Tehran in 2012-2013 educational year. Method: the present study is a quasi-experimental research with pre-test post-test and control group. Participants include 60 mothers of blind children in Tehran selected with purposive sampling based on their score in Oxford happiness questionnaire (score less than the mean)

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... randomly in four groups including three experiment and one control group. Covariance was used to analyse the data. Results: comparing with control group, therapy reality, positive attitude and mixed method meaningfully increased happiness of the mothers (P<0.05). In other words, not a difference was observed comparing reality therapy and positive attitude regarding their influence on happiness. Conclusion: mixed method was more effective on increasing the mothers' happiness than reality therapy and positive thinking.