moods. In the behavior data, the scientists show steeper changes in percent 

 time at work and percent time in sleep than do the engineers. Work support, 

 overall positivity, and WARS recreation support show the strongest uniform 

 downward trends of the attitudinal data analyzed. 



Although statistical testing of these trends is inappropriate at this time, 

 their uniformity and consistency are certainly worth consideration as testable 

 hypotheses. 



Summary and Conclusions 



The focal research point of this study with Tektite II had to do with the 

 evaluations of parameters affecting life quality in underwater living in the 

 Tektite II habitat by the forty-eight men and women who became the aquanauts 

 of the program. These were scientists and engineers of unusual intelligence, 

 imagination, and stability who descended into the habitat with important pro- 

 fessional tasks to perform. Although the habitat was deficient in supporting 

 the kinds of research programs those aquanauts wanted to accomplish and 

 although habitat may not have provided for enough variety of potential activi- 

 ties and stimuli, especially for longer duration missions, attitudes and moods 

 were still generally quite positive in the situation. 



A reasonable way to summarize the habitability assessment program is in terms 

 of the initial objectives of the program. These objectives are reviewed 

 below: 



1. Can measures of habitability be developed? 



This question cannot be completely answered on the basis of this one program. 

 However, it is believed that the techniques employed in this study have gone a 

 long way toward defining those factors that influence habitability in isolated 

 situations. Important research being conducted by the aquanauts in the 

 situation under study was of advantage in this testing program because the 

 habitat was evaluated in a more realistic way than could have been the case 

 otherwise. The tests selected proved viable and meaningful in this natural 

 setting. Results should be replicated in other settings, perhaps with longer 

 mission durations. The importance of replication is especially strong because 

 simultaneous monitoring of attitudes, moods, overt behavior, and personality 

 organization in a natural setting has been rare in the research done thus far. 



2. How important or desirable is privacy? 



This study reaffirmed previous observations that privacy has a very important 

 impact on habitability. The results indicate that the need for variety and 

 privacy, during which the resident can refresh himself from the routinized and 

 flat moods that occur in isolation, increase with longer mission durations. 



3. How important is leisure time, and in what kinds of activities do off-duty 

 crewmen engage? 



Leisure time was found to be very important to the aquanauts, who spent far 

 more time at leisure activities than they or anyone had anticipated. The 



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