Children's early productivity with verbal morphology

Three studies using the intermodal preferential looking paradigm examined onset of productive comprehension of tense/aspect morphology in English. When can toddlers understand these forms with novel verbs and novel events? The first study used familiar verbs and showed that 26–36-month olds correctly matched a past/perfective form (-ed or irregular past) to a completed version of an event and a present/imperfective (is V-ing) to the ongoing version of the same event. The second study used novel verbs and events and found that 33-month olds failed to use tense/aspect morphology to choose between completed and ongoing versions of the same event. The third study also used novel verbs and events but simplified the processing demands of the task in several ways (using initial priming of the events and classes of meaning, using different events within test pairs). This study found that 30-month olds successfully used tense/aspect morphology to choose between ongoing and completed novel events. The results demonstrate that children have productive command of tense/aspect morphology by 30 months and have therefore begun the process of creating an abstract grammar containing this element.     

Quantifying construct validity: two simple measures

Construct validity is one of the most central concepts in psychology. Researchers generally establish the construct validity of a measure by correlating it with a number of other measures and arguing from the pattern of correlations that the measure is associated with these variables in theoretically predictable ways. This article presents 2 simple metrics for quantifying construct validity that provide effect size estimates indicating the extent to which the observed pattem of correlations in a convergent-discriminant validity matrix matches the theoretically predicted pattern of correlations. Both measures, based on contrast analysis, provide simple estimates of validity that can be compared across studies, constructs, and measures meta-analytically, and can be implemented without the use of complex statistical procedures that may limit their accessibility.     

The reliability and stability of verbal working memory measures

The psychometric properties of several commonly used verbal working memory measures were assessed. One hundred thirty-nine individuals in five age groups (18–30, 50–59, 60–69, 70–79, and 80+ years) were tested twice (Time I and Time II) on seven working memory span measures (alphabet span, backward digit span, missing digit span, subtract 2 span, running item span, and sentence span for syntactically simple and complex sentences), with an interval of approximately 6 weeks between testing. There were significant effects of age on all but two of the tasks. All the measures had adequate internal consistency. Correlations between performances at Time I and Time II were significant for all the tasks, other than the missing digit span task. The magnitude of the correlations was similar across the age groups and ranged from .52 to .81. Classification of subjects into discrete memory span groups on the basis of a single measure was highly inconsistent across testing sessions and tasks. Classification into upper and lower quartiles was more stable than using a cutoff score for group membership or than classification into high-, medium-, and low-span groups. Correlational analyses showed that there was a moderate relationship between performances on many of the span tasks. Confirmatory factor analysis suggested that six of the seven tasks reflected a common factor. Both test—retest reliability and stability of classification improved when a composite measure reflecting performance on several tasks was used.     

Relationships among projective and direct verbal measures of achievement motivation

The present study was undertaken to explore ways projective arid nonprojective verbal measures of achievement motivation elicit comparable and dissimilar responses in a "Third World" sample of entrepreneurs as a test of McClelland's theory of economic growth. Results were generally consistent with the theory of achievement motivation, and suggested that high scores on n Ach were associated with high rates of industrial and agricultural output; low scores were associated with static or declining business. TAT measurement was the best predictor in that it correlated 0.68 and 0.48 with agricultural and industrial production. Results further lend support to past findings: namely, that Various achievement measures appear to be measuring dissimilar constructs.     

Interrelations of verbal and nonverbal measures used in experimental aesthetics

Berlyne, D. E. Interrelations of verbal and non-verbal measures used in experimental aesthetics. Scand. J. Psychol., 1973, 14, 177–184.MdashIn Experiment I, 40 miscellaneous visual patterns were rated on 12 scales. Factor analysis of correlations over patterns indicates three factors, provisionally labeled Complexity-Uncertainty. Hedonic Value, and Cortical Arousal. Factor loadings and significant differences among estimated factor scores are discussed with special reference to (1) relations with Osgood's dimensions (2) scales indicative of pleasure and discomfort and (3) scales indicative of arousal. Experiment II measured looking time. Relations between this measure and verbal judgments are examined.     

Self-reported measures of appetite in relation to verbal cues about many foods

In the present study a representative sample of students from a general college population were exposed to a list of written food cues and asked to rate each of the foods according to its nutritional value. Subjects who were exposed to the food list subsequently reported increases in hunger, desire to eat, and number of foods currently hungry for, as well as reduced fullness, compared to controls who were not exposed to the food list. Also, there was a trend for the food-cued subjects to report hunger for lower fat foods compared to the controls. The results are discussed in terms of previous research and suggestions for future research are provided.     

Self-reported measures of appetite in relation to verbal cues about many foods

In the present study a representative sample of students from a general college population were exposed to a list of written food cues and asked to rate each of the foods according to its nutritional value. Subjects who were exposed to the food list subsequently reported increases in hunger, desire to eat, and number of foods currently hungry for, as well as reduced fullness, compared to controls who were not exposed to the food list. Also, there was a trend for the food-cued subjects to report hunger for lower fat foods compared to the controls. The results are discussed in terms of previous research and suggestions for future research are provided.     

Accounting for nonlinear utility functions in composite measures of productivity and performance

Composite measures of productivity and performance combine different indicators of work activities into a single index. The term nonlinearities refers to the phenomenon that the relationship between the scores on an indicator of productivity and the value of that level of the indicator to the organization is not always linear. For example, more is not always better. This research evaluated whether accounting for such nonlinear relationships in productivity measures adds new information to the composite measures. Data from five organizations showed that the correlations between a composite measure which includes nonlinear relationships and one which does not were very high, but treatment effect sizes and decisions resulting from the two measurement systems were substantially different. It was concluded that inclusion of nonlinearities added important information to composite measures of productivity and that accounting for nonlinearities should result in more valid composites. Applications of this issue for other topics such as performance appraisal and promotions were discussed.     

LF-interpretability and language development: a study of verbal and nominal features in Greek normally developing and SLI children

This paper includes (i) a comparison of the developmental pattern of certain morphosyntactic features in normally developing (ND) Greek children with similar data from a group of children with specific language impairment and (ii) a new analysis of the differences found. The analysis is based on a minimalist notion of LF interpretability. Depending on the feature-specification of lexical items (i.e., [+/- interpretable] at LF), a different route of development follows. In addition, phonological salience of both interpretable and noninterpretable features is argued to play an important role in an account of crosslinguistic differences in both normal and exceptional development.