An evaluation of statistical software for research and instruction

A variety of microcomputer statistics packages were evaluated. The packages were compared on a number of dimensions, including error handling, documentation, statistical capability, and accuracy. Results indicated that there are some very good packages available both for instruction and for analyzing research data. In general, the microcomputer packages were easier to learn and to use than were mainframe packages. Furthermore, output of mainframe packages was found to be less accurate than output of some of the microcomputer packages.     

Further investigations of inhibitory mechanisms in attention

Three experiments employed a discrete-trials version of the Stroop task to investigate further the claim that there are inhibitory mechanisms in selective attention (Neill, 1977). The results indicated that the evidence supporting the inhibitory theory (i.e., the diminished availability of distractor responses) cannot be explained by subjects’ attempts to physically match successive stimuli (Lowe, 1979). In light of all the available evidence, it was suggested that the suppression effect does not index attentional inhibition, but may be attributed to a problem of code coordination (Keele & Neill, 1978).     

Lexical representation of fact and opinion

This research investigated the lexical properties underlying comprehension that a word represents fact or opinion. In Experiment 1 subjects reliably identified words as either fact or opinion. Bivariate correlations and multiple regression showed that fact/opinion judgments were predicted primarily by ratings of the ease of verifiability of a word's referent and secondarily by the word's literalness, but not by several other lexical attributes: abstractness-concreteness, vagueness-preciseness, and evaluation. Experiment 2 extended the results of the first experiment to an implicit fact/opinion judgment, i.e., the identification of headlines as originating from a newspaper's front page (presumably based primarily upon fact) or from the editorial page (presumably based upon opinion). The headline judgments, also made reliably by subjects, were predicted by the same variables found significant in the first experiment, i.e., by verifiability and literalness, but not by the other lexical properties. Thus, the results of both experiments indicate that the identification of a word as representing fact or opinion is rooted in a word's verifiability and literalness.     

Processes of verbal memory failure in Alzheimer-type dementia

Multiple aspects of verbal learning and memory performance in mild as compared to moderate Alzheimer-type dementia (ATD) were studied with the Buschke selective reminding paradigm. Results show that (1) both groups of ATD subjects depend less on long-term memory (LTM) and more on short-term memory (STM) relative to elderly control subjects, (2) mild ATD subjects show less LTM encoding than moderate ATD subjects, (3) moderate ATD subjects retrieve a smaller portion of the items presumed to be encoded into LTM than do mild ATD subjects, and (4) high-imagery words increase LTM encoding and retrieval as compared to low-imagery words for moderate ATD subjects only. These results are explained by the inability of ATD subjects to attend to more than one component of the list-learning task, in conjunction with differences in the deployment of attention between mild and moderate ATD subjects.     

Reliability and validity of children's reports of migraine headache symptoms

The present study was concerned with whether children's responses to a questionnaire correspond with parents' reports of the child's headache symptoms and whether these responses correlate with self-monitored headache activity. Twenty-eight children, ages 7 years–16 years, participated in the study. Using a questionnaire format, data on a wide variety of headache characteristics were gathered from parents and children. During the subsequent 4 weeks, children monitored their headache activity and medication usage. Results were generally supportive of the validity and reliability of children's reports via a questionnaire format. The responses to the frequency of headache and medication usage were found to predict the responses over the next month, whereas the response on the duration of headache did not. Significant correlations for most headache-symptom items indicated that children and parents agree on their presence and severity. This investigation is the first step in developing a systematic assessment procedure for childhood headache.     

Alcohol use and high-risk sexual behavior among men who have sex with men: the effects of consumption level and partner type.

Alcohol use may increase HIV sexual risk behavior, although findings have varied across study populations and methods. Using event-level data from 1,712 seronegative men who have sex with men, the authors tested the hypothesis that social context would moderate the effect of alcohol consumption on unprotected anal sex (UAS). For encounters involving a primary partner, rates of UAS did not vary as a function of alcohol use. However, consumption of 4 or more drinks tripled the likelihood of UAS for episodes involving a nonprimary partner. Thus, the effects of alcohol vary according to the context in which it is used. Interventions to reduce substance-related risk should be tailored to the demands of maintaining sexual safety with nonprimary partners.     

Sculpted Shame: Experiential Learning and Pastoral Theology's Role as a Reconciling Force in Theological Education

Pastoral Psychology -