PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

A meta-analysis of 3 types of peer norms and their relation with adolescent sexual behavior

2014-09-12
(Press-News.org) Researchers at Utrecht University and the New York State Psychiatric Institute collaborated on a meta-analysis of research on adolescent sexual behavior. The goal was to analyze how this behavior is related to adolescents' perceptions of three types of sexual peer norms, including how sexually active their peers are, how much their peers would approve of being sexually active, or how much they feel pressured by their peers to have sex. Awareness that these are different ways in which peers can affect adolescents' sexual behaviors is important for parents, teachers, and health care professionals who want to stimulate adolescents' responsible and healthy sexual decision making. The meta-analysis is published in Personality and Social Psychology Review.

Which peer norms were investigated?

The three types of peer norms analyzed in the study include descriptive norms, injunctive norms and peer pressure. Descriptive norms reflect adolescents' perceptions of peers' engagement in sexual behaviors. In general, individuals tend to imitate others' behaviors based on the reasoning that if others are doing it, especially when many others do it, it might be a good or wise thing to do.

Injunctive norms reflect adolescents' perceptions of peers' approval of engagement in sexual behaviors. When individuals are thinking about engaging in a certain behavior, and they believe that their peers would approve of this behavior, they are more likely to initiate that behavior. Peer pressure, a term that many people are familiar with, refers to explicit social pressure from peers to engage in sexual behavior. Peer pressure can affect individuals' behavioral decisions based on their perception of potential social gains or losses (e.g., status or exclusion), depending on their conformation to the exerted pressure.

The meta-analysis found that all three types of peer norms are related to adolescents' sexual behavior.

Does one peer norm have a greater effect than another?

The meta-analysis reviewed 58 published and unpublished studies conducted in 15 countries. Together, the studies provided data on 69,638 adolescents, with sample sizes ranging from 29 to 7,530. The analysis found that adolescents tended to be more sexually active themselves if they perceived their peers as a) more sexually active, b) more approving of having sex, and c) exerting more pressure on them to be sexually active. "What adolescents think that their peers do (role modeling) seems to be most important: adolescents who think that their peers engage in sex are more likely to engage in sex themselves. Peers' approval of having sex, or peer pressure to have sex, also matter, but seem to matter less," explains lead researcher, Daphne van de Bongardt.

Surprisingly, the analysis found that peer pressure had the smallest effect on sexual behavior. Daphne van de Bongardt cautions this result saying, "the meta-analysis included only 10 studies that examined peer pressure, and they varied considerably in the way in which peer pressure was measured (e.g., number of items, source and focus of the pressure). Overall, the literature could be clearer about what "peer pressure" entails, and how it can best be measured. More research is needed to get more insight into adolescents' own definitions of peer pressure, and the subtlety in which peer pressure may operate in adolescents' interactions with peers."

How strongly adolescents' sexual behaviors are related to sexual peer norms is similar for boys and girls, according to the analysis. However, the extent to which peers engage in sexual risk behavior appears to be more strongly related to girls' engagement in sexual risk behavior than it is for boys.

Need for future research

There were several limitations that the researchers faced in analyzing the existing research. More research is needed to investigate how age, gender, ethnicity, different peer types, and other factors, such as socioeconomic status or discrimination affect relations between peer norms and adolescent sexual behaviors. Most studies also utilized a narrow description of sexual activity by assessing only heterosexual intercourse, which leaves out other forms of sexual behavior adolescents might engage in.

More longitudinal research is needed to better understand how sexual peer norms and adolescent sexual behavior are linked over-time, and to disentangle the extent to which adolescents are influenced by peers in their sexual behaviors (socialization processes), or the extent to which they select peers who share similar sexual norms (selection processes). The meta-analysis suggests that both processes play a role.

INFORMATION: Please email press@spsp.org if you would like a copy of the original study in Personality and Social Psychology Review. Van de Bongardt, D., Reitz, E., Sandfort, T., Deković, M., (2014). A Meta-Analysis of the Relations Between Three Types of Peer Norms and Adolescent Sexual Behavior. Personality and Social Psychology Review. Personality and Social Psychology Review (PSPR), published quarterly, is an official journal of the Society of Personality and Social Psychology (SPSP). SPSP promotes scientific research that explores how people think, behave, feel, and interact. The Society is the largest organization of social and personality psychologists in the world. Follow us on Twitter, @SPSPnews and find us at facebook.com/SPSP.org


ELSE PRESS RELEASES FROM THIS DATE:

Protein appears to protect against bone loss in arthritis

Protein appears to protect against bone loss in arthritis
2014-09-12
AUGUSTA, Ga. – A small protein named GILZ appears to protect against the bone loss that often accompanies arthritis and its treatment, researchers report. Arthritis as well as aging prompt the body to make more fat than bone, and the researchers have previously shown GILZ can restore a more youthful, healthy mix. It also tamps down inflammation, a major factor in arthritis. Now they have early evidence that GILZ might one day be a better treatment option for arthritis patients than widely used synthetic glucocorticoids, which actually increase bone loss, said Dr. Xingming ...

Dendritic cells affect onset and progress of psoriasis

2014-09-12
Different types of dendritic cells in human skin have assorted functions in the early and more advanced stages of psoriasis report researchers in the journal EMBO Molecular Medicine. The scientists suggest that new strategies to regulate the composition of dendritic cells in psoriatic skin lesions might represent an approach for the future treatment of the disease. "We urgently need new ways to treat psoriasis, treatments that will deliver improved benefits to patients and reduce the incidence of known side effects for existing drugs," says EMBO Member Maria Sibilia, ...

Gray matter matters when measuring our tolerance of risk

2014-09-12
There is a link between our brain structure and our tolerance of risk, new research suggests. Dr Agnieszka Tymula, an economist at the University of Sydney, is one of the lead authors of a new study that identifies what might be considered the first stable 'biomarker' for financial risk-attitudes. Using a whole-brain analysis, Dr Tymula and international collaborators found that the grey matter volume of a region in the right posterior parietal cortex was significantly predictive of individual risk attitudes. Men and women with higher grey matter volume in this region ...

Age and diabetes duration linked to risk of death and macrovascular complications

2014-09-12
New research published in Diabetologia (the journal of the European Association for the Study of Diabetes) shows that age (or age at diagnosis) and duration of diabetes disease are linked to the risk of death and marcovascular complications (those in larger blood vessels), whereas only diabetes duration is linked to the risk of microvascular complications (in smaller blood vessels such as those in the eyes). This means younger people with diabetes are more at risk of microvascular complications since they are more likely to have diabetes for longer over their lifetimes ...

The Lancet: Combining gut hormone with insulin proves more effective at controlling type 2 diabetes than other common treatments

2014-09-12
Combined treatment with a drug that mimics the action of a gut hormone and basal insulin [1] is more effective at improving blood sugar control than other anti-diabetic treatments, with similar rates of hypoglycaemia (dangerously low blood sugar levels) and greater weight loss, a systematic review and meta-analysis published in The Lancet shows. "Achieving normal blood sugar levels in people with type 2 diabetes is compromised by the adverse side effects plaguing currently available treatments. Some anti-diabetic treatments increase risk of hypoglycaemia and weight gain ...

Many kidney failure patients have concerns about pursuing kidney transplantation

2014-09-12
Washington, DC (September 11, 2014) — Concerns about pursuing kidney transplantation are highly prevalent among kidney failure patients, particularly older adults and women, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society of Nephrology (CJASN). Reducing these concerns may help decrease disparities in access to transplantation. There are thousands of patients with kidney failure who lack access to kidney transplantation, and disparities persist in terms of race, age, sex, and other patient characteristics. To improve ...

Microbes evolve faster than ocean can disperse them

Microbes evolve faster than ocean can disperse them
2014-09-12
Two Northeastern University researchers and their international colleagues have created an advanced model aimed at exploring the role of neutral evolution in the biogeographic distribution of ocean microbes. Their findings were published Thursday in the journal Science. The paper—titled "Biogeographic patterns in ocean microbes emerge in a neutral agent-based model"—was co-authored by Ferdi Hellweger, a microbial ecology expert and an associate professor of civil and environmental engineering; his doctoral student Neil Fredrick, PhD'15; and oceanographer Erik van Sebille ...

Inflammation may be key to diabetes/heart disease link

2014-09-11
Inflammation may be the reason high blood sugar levels damage blood vessels, raising the possibility that anti-inflammatory medications might someday be used to lower the risk of blood vessel disease in people with diabetes, according to a study presented at the American Heart Association's High Blood Pressure Research Scientific Sessions 2014. "These findings may explain why good blood sugar control is not sufficient to avoid the development of diabetes-induced cardiovascular diseases," said Carlos F. Sánchez-Ferrer, M.D., Ph.D., study author and professor of pharmacology ...

Cutting the cord on soft robots

2014-09-11
When it comes to the development of soft robots, researchers have finally managed to cut the cord. Engineers at Harvard's School for Engineering and Applied Sciences and the Wyss Institute for Biologically Inspired Engineering have developed the world's first untethered soft robot – a quadruped which can literally stand up and walk away from its designers. Working in the lab of Charles River Professor of Engineering and Applied Sciences Robert Wood, a team of researchers that included Michael Tolley, Robert Shepherd, Bobak Mosadegh, Kevin Galloway, Michael Wehner ...

NASA research helps unravel mysteries of the Venusian atmosphere

NASA research helps unravel mysteries of the Venusian atmosphere
2014-09-11
VIDEO: New research shows giant holes in Venus' atmosphere -- which serve as extra clues for understanding this planet so different from our own. Click here for more information. Underscoring the vast differences between Earth and its neighbor Venus, new research shows a glimpse of giant holes in the electrically charged layer of the Venusian atmosphere, called the ionosphere. The observations point to a more complicated magnetic environment than previously thought – which ...

LAST 30 PRESS RELEASES:

Global cervical cancer vaccine roll-out shows it to be very effective in reducing cervical cancer and other HPV-related disease, but huge variations between countries in coverage

Negativity about vaccines surged on Twitter after COVID-19 jabs become available

Global measles cases almost double in a year

Lower dose of mpox vaccine is safe and generates six-week antibody response equivalent to standard regimen

Personalised “cocktails” of antibiotics, probiotics and prebiotics hold great promise in treating a common form of irritable bowel syndrome, pilot study finds

Experts developing immune-enhancing therapies to target tuberculosis

Making transfusion-transmitted malaria in Europe a thing of the past

Experts developing way to harness Nobel Prize winning CRISPR technology to deal with antimicrobial resistance (AMR)

CRISPR is promising to tackle antimicrobial resistance, but remember bacteria can fight back

Ancient Maya blessed their ballcourts

Curran named Fellow of SAE, ASME

Computer scientists unveil novel attacks on cybersecurity

Florida International University graduate student selected for inaugural IDEA2 public policy fellowship

Gene linked to epilepsy, autism decoded in new study

OHSU study finds big jump in addiction treatment at community health clinics

Location, location, location

Getting dynamic information from static snapshots

Food insecurity is significant among inhabitants of the region affected by the Belo Monte dam in Brazil

The Society of Thoracic Surgeons launches new valve surgery risk calculators

Component of keto diet plus immunotherapy may reduce prostate cancer

New circuit boards can be repeatedly recycled

Blood test finds knee osteoarthritis up to eight years before it appears on x-rays

April research news from the Ecological Society of America

Antimicrobial resistance crisis: “Antibiotics are not magic bullets”

Florida dolphin found with highly pathogenic avian flu: Report

Barcodes expand range of high-resolution sensor

DOE Under Secretary for Science and Innovation visits Jefferson Lab

Research expo highlights student and faculty creativity

Imaging technique shows new details of peptide structures

MD Anderson and RUSH unveil RUSH MD Anderson Cancer Center

[Press-News.org] A meta-analysis of 3 types of peer norms and their relation with adolescent sexual behavior