A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Cluster analysis of childhood temperament data on adoptees. | LitMetric

Cluster analysis of childhood temperament data on adoptees.

Am J Orthopsychiatry

Department of Psychiatry.

Published: July 1980

Cluster analysis is used with behavioral data on 162 adoptees to assess temperament and to test the validity of the temperament typologies described by Thomas and Chess. Data are divided into two groups by sex. Results concur with the Thomas-Chess findings in identifying three main temperament groups: difficult, easy, and slow to warm up. Membership in the difficult group predicted later childhood behavior disorder in both sexes. Differing environmental factors associated with difficulty for males and for females are considered, and directions for further investigation are suggested.

Download full-text PDF

Source
http://dx.doi.org/10.1111/j.1939-0025.1980.tb03310.xDOI Listing

Publication Analysis

Top Keywords

cluster analysis
8
analysis childhood
4
temperament
4
childhood temperament
4
temperament data
4
data adoptees
4
adoptees cluster
4
analysis behavioral
4
behavioral data
4
data 162
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!