Summary information

Study title

Jyväskylä Longitudinal Study of Personality and Social Development (JYLS): Teacher Ratings, Peer Nominations and Personality Tests of 8-Year-Olds 1968

Creator

Pulkkinen, Lea (University of Jyväskylä. Department of Psychology) - 0000-0002-4290-6690

Study number / PID

FSD2059 (FSD)

urn:nbn:fi:fsd:T-FSD2059 (URN)

10.60686/t-fsd2059 (DOI)

Data access

Restricted

Series

Jyväskylä Longitudinal Study of Personality and Social Development (JYLS)

Jyväskylä Longitudinal Study of Personality and Social Development was initiated as Lea Pulkkinen's doctoral dissertation in 1968. Since then, the study has continued to follow the same individuals for over 40 years. When the project was launched, 369 eight-year-old children participated in the research. They were randomly selected among second-graders in primary school. After the first research, data have been collected when the respondents have been 14, 20, 27, 33, 36, 42, 50, and 60 years old. The latest data collection started in 2020. When the respondents were still in school, the...

Read more

Abstract

The data are the first part of the Jyväskylä Longitudinal Study of Personality and Social Development (JYLS), in which the same individuals have been followed over 30 years. The first round of data collection surveyed 8-year-old children through peer nominations, teacher ratings, and two personality tests. The peer nominations were made in classroom settings under the supervision of the researchers. The pupils answered various questions, such as "Which of your classmates are tranquil and patient?" and "Which of your classmates try to get other's attention by fooling around?". The pupils were asked to choose about 3-5 classmates fitting the description for each question. There were altogether 33 questions characterising the following traits: self control, aggressiveness, anxiety, passivity, compliance, constructiveness, and activity. The peer nominations were factor analysed, and on the basis of the results, the pupils were classified into 6 extreme groups: the aggressive, the anxious, the aggressive and anxious, the controller extroverts (the constructive), the stable, and the stable introverts (the compliant). This classification was used in designing the judgment sample for the 8-9 year old boys' aggressiveness tests, and later in the 14-year-olds' interviews. The data include the extreme group classifications for 8 and 14-year-olds. The teachers were also presented with the same set of questions. In addition, they were asked to assess the pupils' anti-social behaviour, excessive withdrawal, ability to concentrate, positive developmental predictions, and school success. The teachers evaluated each pupil according to how characteristic of him/her the aforementioned types of behaviour were. The girls' behaviour was compared with other girls of same age, and the boys' behaviour with other boys. The children completed two personality questionnaires translated into Finnish: the Junior Eysenck Personality Inventory (Eysenck, 1965), and Personality Inventory for the...
Read more

Methodology

Data collection period

1968

Country

Finland

Time dimension

Longitudinal: Cohort/Event-based

Analysis unit

Individual

Universe

Persons who were second grade students in a school in Jyväskylä in 1968. The sample was collected both from the town centre and suburbs.

Sampling procedure

Probability: Cluster: Stratified random

Kind of data

Quantitative

Data collection mode

Face-to-face interview
Self-administered questionnaire: Paper

Access

Publisher

Finnish Social Science Data Archive

Publication year

2007

Terms of data access

The dataset is (D) available only by permission from the data depositor/creator.

Related publications