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Results for “construct validity”

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At least 289 records · Page 16Linked to original sources
PubMed2000

The construct validity of the readiness to change questionnaire for persons with TBI.

OBJECTIVE: To examine the reliability and validity of the Readiness to Change Questionnaire (RTC) among persons with recent traumatic brain injury. DESIGN: Survey. SETTING: Inpatient rehabilitation. PARTICIPANTS: One-hundred twenty-six persons with recent TBI. RESULTS: In the first step of the analyses the RTC measure was rescaled and shortened to produce a coherent linear measure of readiness to change. Subsequent analyses showed that the linear measure fit a three stage model of change and correlated in meaningful ways with independent measures of alcohol problem severity. CONCLUSIONS: The RTC measure can be substantially improved by utilizing results obtained from rating scale analysis. The resulting 10-item linear scale has good internal consistency, a theoretically sound factor structure and meaningful correlations with external variables. Measuring readiness to change may be useful for tailoring treatment and predicting outcomes, though more research is needed in this area.

Adaptation, Physiological↗
PubMedDate not supplied

The NEECHAM Confusion Scale: construction, validation, and clinical testing.

This article reports the development of the NEECHAM Confusion Scale for rapid and unobtrusive assessment and monitoring of acute confusion. The scale was tested in two samples (N = 168 and 258, respectively) of elderly patients hospitalized for acute medical illness. Internal consistency and interrater reliability of the instrument were found to be high. The NEECHAM correlated well with the Mini-Mental State Examination and the sum of DSM-III-R positive items. Factor analyses identified and confirmed cognitive/behavioral and physiological domains. The NEECHAM provides a valid and reliable bedside assessment of acute confusion, particularly at its onset and in patients with "quiet" manifestations.

Confusion↗
PubMed1982

Daily activities of college students and the construct validity of the Jenkins Activity Survey.

To examine the everyday behavioral correlates of Jenkins Activity Survey (JAS) scores, 70 college students recorded the nature of their activities for 1 week. Several behavioral differences between individuals classified as Type A and Type B on the basis of JAS scores were observed. These differences were consistent with most definitions of the Type A behavior pattern. Type As spent more time in class, studying, and participating in religious services and less time socializing with friends than Type Bs. Type A individuals were more likely to be fraternity or sorority members and to report higher career aspirations than Type Bs. The degree to which Type As' diligent school-related behavior could be attributed to greater academic demands was examined. It is proposed that the JAS may provide a better index of a personality predisposition to exhibit coronary-prone behavior given the appropriate circumstances than an index of coronary-prone behavior per se.

Achievement↗
PubMed1995

Assessment of female sexual arousal: response specificity and construct validity.

Specificity of vaginal pulse amplitude and vaginal blood volume in reaction to visual sexual stimuli was investigated by comparing responses to sexual, anxiety-inducing, sexually threatening, and neutral film excerpts. Subjective sexual arousal, body sensations, emotional experience, skin conductance, and heart rate were monitored along with the genital measures. Self-report data confirmed the generation of affective states as intended. Results demonstrated response specificity of vaginal vasocongestion to sexual stimuli. In terms of both convergent and divergent validity, vaginal pulse amplitude was the superior genital measure. Skin conductance discriminated among stimuli only to a small degree, whereas heart rate failed to discriminate among stimuli altogether.

Adolescent↗
PubMed1992

The Swedish version of the Positive and Negative Syndrome Scale (PANSS) for schizophrenia. Construct validity and interrater reliability.

The Positive and Negative Syndrome Scale (PANSS) has been translated into Swedish and tested in 88 chronic schizophrenic patients. All 4 subscales exhibited a roughly normal distribution. The overall alpha for the positive, negative and general psychopathology subscales were 0.81, 0.58 and 0.63, respectively. The correlation between the positive and negative subscales was -0.17 (NS). The interrater reliability was 0.73-0.75 for the positive, 0.65-0.74 for the negative and 0.75-0.77 for the general psychopathology subscales. The intraclass coefficients were 0.75-0.77 for the positive, 0.27-0.46 for the negative, 0.56-0.72 for the general psychopathology subscales and 0.66-0.71 for the total scale. Thus, the validity and reliability of the PANSS (Swedish version) are quite satisfactory.

Antipsychotic Agents↗
PubMed1989

The Brief Psychiatric Rating Scale. Dimension of schizophrenia--reliability and construct validity.

This study has focussed on a 10-item Brief Psychiatric Rating Scale (BPRS) subscale for the quantification of schizophrenic states. Seven psychiatrists interviewed jointly patients who all fulfilled the DSM-III criteria of schizophrenia, and in a subsequent pencil-and-paper procedure a judgment analysis was performed. The reliability analysis showed that less experienced BPRS raters made less consistent judgments implying the cautionary statement that the proper use of a scale for schizophrenia requires specialized training with the scale. The validity analysis showed that the BPRS items had an additive relationship implying that the sum of these items is a sufficient statistic for the measurement of severity of schizophrenic states. Finally, the results seem to indicate, that the underlying dimension defined by the 10-items BPRS subscale includes hierarchically the negative and positive symptoms of schizophrenia.

Adult↗
PubMed1989

The construct validity of the ischemic score of Hachinski for the detection of dementias.

Two hundred forty-one nursing home patients from the National Nursing Home Survey Pretest were assessed using the Ischemic Score of Hachinski. Medical chart diagnoses were used to classify those with and without dementia. The Mini-Mental State Examination was used to assess the accuracy of the medical-chart diagnoses of dementia. The Ischemic Score failed to differentiate multi-infarct dementia from other types of dementias. Instead, the difference between the two dementia groups was in the direction opposite that predicted by Hachinski.

Aged↗
PubMed1998

A longitudinal study of psychosis due to a general medical (neurological) condition: establishing predictive and construct validity.

A sample of 44 patients with a neurological disorder and a DSM-IV diagnosis of Psychosis due to a General Medical Condition were followed on average for 4 years and their response to treatment and clinical course noted. Outcome was more benign than in schizophrenia, with most patients having a brief duration of psychosis and good response to small doses of neuroleptics. One-fourth of patients suffered a single, brief psychotic episode with return to full premorbid function. None required maintenance neuroleptic treatment. The outcome and descriptive profile of the disorder also differed from late-onset schizophrenia. Thus, Psychosis due to a General Medical (Neurological) Condition does appear to have predictive validity. However, no temporal association was found between the neurological illness and psychosis. Possible reasons for this are discussed.

Adult↗