A delineation of nine categories of mnemonic techniques employed by college students in paired associate learning. No significant differences were found between men and women by category of memory ...aids; the nine categories of memory aids were divided into two major classifications. The primary aids accounted for 59% of the memory aids reported and were evenly distributed (about 15%) among first letter, imagery, phonetic clustering, and simple repetition. The remaining 41% were evenly distributed (about 8%) among the secondary aids of semantic clustering, other, descriptive story, personal experience, and mediation. There was a significant difference in total percentages of memory aids between the primary and secondary classifications, but not within the classification.
Reports an error in the original article by by Michael R. Cooper, Charles E. Boltwood, and Robert J. Wherry, Sr. (Journal of Applied Psychology. Vol. 59(3) Jun 1974, 365-368). Footnote 2 on page 365 ...appeared incorrectly. A corrected version of the footnote is provided. Administered a 28-item questionnaire to 127 airline passengers at Columbus International Airport, Ohio, which was then factor analyzed and rotated to orthogonal hierarchical structure. Results indicate that passengers did respond differentially to items concerning their reactions to hypothetical skyjacking situations and airport security measures when items were couched in terms of willingness to fly as contrasted to probability of actually taking a given flight. Subgroups were differentiated by 1 or more of the following variables: age, sex, enjoyment of flying, distance to destination, and the extent of their dislike for buses. Other than buses, preferred modes of travel appeared relatively unrelated to favorableness or unfavorableness of passenger reactions.
Administered a 28-item questionnaire to 127 airline passengers at Columbus International Airport, Ohio, which was then factor analyzed and rotated to orthogonal hierarchical structure. Results ...indicate that passengers did respond differentially to items concerning their reactions to hypothetical skyjacking situations and airport security measures when items were couched in terms of willingness to fly as contrasted to probability of actually taking a given flight. Subgroups were differentiated by 1 or more of the following variables: age, sex, enjoyment of flying, distance to destination, and the extent of their dislike for buses. Other than buses, preferred modes of travel appeared relatively unrelated to favorableness or unfavorableness of passenger reactions.
College students reported eight categories of memory aids that they would employ in learning a serial task. Although no significant differences were found between males and females by category of ...memory aids reported, there was a significant difference among categories. First letters and simple repetition accounted for 48% of all memory aids, while the remaining 52% were divided almost evenly among imagery, descriptive story, mediation, other, phonetic clustering, and semantic clustering. Clearly, the first-letter technique was the most popular mnemonic associated with the serial task.
To determine passenger reactions to skyjacking and related airline and governmental security measures, attitude questionnaires were administered to a random sample of 102 passengers at a large ...midwestern airport. Results indicate (a) 3 response dimensions failed to differentially relate passenger attitudes to 7 proposed security procedures; (b) a general construct, "overall concern for security," did not adequately account for passenger reactions to specific security measures; and (c) 8 orthogonal factors represented different attitude constructs for specific passenger subgroups. It is concluded that there is no typical airline passenger exhibiting an overall concern for security against skyjacking. Rather, a complex model of passenger attitudes and their behavioral correlates must be constructed in order to account adequately for passenger reactions to security programs.
Intensive monitoring of OJ 287 Pursimo, T.; Takalo, L. O.; Sillanpää, A. ...
Astronomy & astrophysics. Supplement series,
10/2000, Letnik:
146, Številka:
1
Journal Article
Recenzirano
Odprti dostop
We present intensive optical, infrared, and radio monitoring observations of the BL Lac object OJ 287, taken between the years 1993-1998. Two large optical outbursts were detected at the predicted ...times in November 1994 and December 1995. The detection of these outbursts supports the binary black hole model for OJ 287. Optical and radio polarisation observations show large variability in the degree of polarisation and position angle, very similar to those observed during the 1983/84 outburst in OJ 287. The polarisation position angles show very similar behaviour during these observations, indicating that, at least, the magnetic field orientations in radio and optical bands are related in OJ 287. Optical and infrared light curves show continuous variability in time scales ranging from tens of minutes to years. In the radio bands we have observed some of the lowest ever measured flux levels. During the first optical outburst in November 1994 the observed radio flux was very low, but during the second optical outburst radio bands also showed high flux levels. This is a puzzling observation, which can hopefully be used for discriminating between different outburst models. On top of the large outbursts OJ 287 has displayed flaring activity in time scales from days to weeks and shorter time scale flickering.
We present results from a two year intensive monitoring of BL Lac object 3C 66A (PKS 0219+428). This object was observed in outburst during these two years. It reached the brightest ever observed ...magnitude on V=13.59 (1.2.1995) and on K=10.59 (15.2.1994). The optical and infrared light curves are characterised by randomly distributed fast flares, lasting a few days and well defined outbursts lasting a week or two. On top of these flares we can occasionally see small amplitude microvariability. No clear correlation can be found between the spectral behaviour and the occurrence of these flares. In the radio bands 3C 66A was quite faint and very stable compared to the optical variations. The light curves will be presented with preliminary analysis and discussions on the possible causes for the observed variations.
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