1977 ◽  
Vol 13 (3) ◽  
pp. 257-264 ◽  
Author(s):  
S. C. Pearce

SUMMARYIt is suggested that quite a small computer, in association with a minimal program for the analysis of variance, can be used to calculate quantities of use to the agronomic research worker beyond what he usually obtains. For example, without further programs it is possible to calculate an analysis of covariance, in which adjustment is made for some disturbing factor. It is also possible to find how much of the error variance arises from a particular plot, and to deal with situations in which data are incomplete or the yields from two plots have become mixed.


2019 ◽  
Vol 41 (6) ◽  
pp. 386-400
Author(s):  
Shamsi S. Monfared ◽  
Gershon Tenenbaum ◽  
Jonathan R. Folstein ◽  
K. Anders Ericsson

This study examined attention allocation in 30 marksmen categorized into 3 skill levels ranging from expert to novice. Each shooter performed 336 shooting trials. Half of the trials were performed under an occluded-vision condition and the rest under regular, unoccluded conditions. Immediately after completion of a random subset of shots (96 trials), shooters estimated the actual location of each shot, and on a random subset of trials (48 trials), shooters gave retrospective verbal reports. A mixed 3 × 2 factorial analysis of variance revealed that the expert marksmen performed and estimated their shots more accurately than the intermediate and novice marksmen, the intermediates performed like the experts under the full-vision condition and like novices under the occluded-vision condition, and the experts reported attending more to nonvisual information while they estimated their shots than did the novices. The findings advance our understanding of the mechanisms mediating expertise.


1976 ◽  
Vol 4 (2) ◽  
pp. 160-167 ◽  
Author(s):  
Carl D. Haugen ◽  
Keith J. Edwards

The purpose of the study was, first, to determine whether labeling a taped therapist in terms of the therapist's religious value orientation (Christian/non-Christian) and interpersonal style (warm/cold) would change religious subjects’ perceptions of the relationship. Second, it was to determine whether the strength of attraction of the religious value orientation was greater than the interpersonal style. Seventy-one Christian evangelical undergraduates were randomly assigned to five groups. Four groups were given different information with regard to a therapist's warmth and Christianity. The fifth group acted as a control. Following structuring, all subjects listened to the same tape of a simulated therapy session. At the conclusion, the subjects rated the tape using scales to measure the dependent variables of attraction, receptivity, persuasibility, and willingness to meet. A two by two and one by five analysis of covariance and analysis of variance were computed. The only significant results found were that the control group evidenced more persuasibility than the Christian/cold and non-Christian/cold groups. Examination of group means showed a trend in the direction hypothesized for attraction and receptivity. A Pearson correlation was computed to determine the relationship between perception of the therapist's religious orientation and the dependent variables and perception of the therapist's interpersonal style and the dependent variables. There was a positive correlation between rating the therapist as Christian and the dependent variables of attraction and receptivity, p<.05. There was also a positive correlation between rating the therapist as warm and attraction and receptivity, p<.05.


1974 ◽  
Vol 22 (2) ◽  
pp. 136-142 ◽  
Author(s):  
Steven K. Hedden

This research used a factorial analysis of variance to examine preferences for tonal stimuli that differed in frequency, intensity, or wave form. For the sample of music majors, wave form appeared to have the greatest effect on preferences; pure tones were most preferred. The main effect for intensity also was significant, as was the interaction of intensity and wave form. For the sample of nonmusic majors, the predominant influence on preferences seemed to be intensity. The nonmusic majors preferred the softer of the two levels. In addition, the main effect for wave form was significant, as were the interactions of wave form with intensity and frequency with intensity.


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