The study interventions will be developed by the researchers based on review of the related literature and with reference to the CST manual (Spector, et al., 2006), and review on Cognitive Stimulation (Woods et al., 2012). The study subjects of group 1, the study group, will receive the proposed interventions, the cognitive stimulation interventions through small groups of study subjects receiving 12 sessions of group activities (2 sessions/week, approximately 45- 60 minutes/session). A group size of 6 to 8 will be conducted. The interventions group will be conducted in activity rooms within the elderl club. The study subjects group 2, the control group, will receive the routine activities of the elderly club. The researchers will provide the control group with written materials related the essential cognitive stimulation interventions after ending the implementation of the proposed interventions for the study group.

The study subjects group 2, the control group, will receive the routine activities of the elderly club.The researchers will provide the control group with written materials related the essential cognitive stimulation interventions after ending the implementation of the proposed interventions for the study group,

a quasi-experimental research design.The study subjects of group 1, the study group, will receive the proposed interventions, the cognitive stimulation interventions through small groups of study subjects receiving 12 sessions of group activities (2 sessions/week, approximately 45- 60 minutes/session). A group size of 6 to 8 will be conducted. The interventions group will be conducted in activity rooms within the elderly club.

The MMS scale was developed by Folestein et al., (1975). It used to assess cognitive function of the older adults. It contained questions concerning registration, orientation, calculation, recall, attention, and language. The MMS scale score was 30 point and classified as follows: -30. -23. -17.

The MMS was translated into Arabic and approved to be valid and reliable (r=0.96) by El Husseini (2008). The Arabic version of this scale was used in the present study.

The Geriatric Depression Scale - short Form (GDS-SF), a self-report tool with 15-item developed by Yesavage et al. (1983) to assess general well-being and depression in the elderly. The older adults should select one answer either yes (1) or no (0) for their feelings over the past week. The scores ranged from 0 to 15. Items' score will be calculated for the total score. A score of 0 to 4 meant no depression, score of 5 to 8 meant mild depression, score of 9 to 11 meant moderate depression, and 12-15 meant severe depression.

The GDS-SF was translated into Arabic and approved to be reliable (r=0.70) and valid by ElHusseini (2013). The Arabic version of this scale was used in the current study.

This tool will be developed by the researchers to assess the cognitive self-efficacy among older adults. It composed of 40 items related to six domains covering six cognitive functions (Everyday Memory, Language, Visuospatial Abilities, Planning, Organization, and Divided attention). Each domain contains several cognitive task related to this domain. Older adults asked to rate how certain they are that they can do each cognitive task. They rate the degree of confidence in their cognitive abitity by recording a number from 0 to 10, next to each statement, where 0 means cannot do at all, 5 moderately certain can do, and 10 indicates highly certain can do.the total score ranges from 0 to 400. The higher the score is the higher cognitive self-efficacy.