That internships "are good" is something most people agree on. But what does research actually say? Do internships lead to jobs? Does quality matter? And are there situations where internships don't help? We've reviewed Swedish and international research to provide a nuanced picture.
Research on internships' effect on employment examines the relationship between workplace-based learning during education and the student's establishment in the labor market after graduation. Results show that internships have a positive effect – but the effect varies greatly depending on quality, education type and labor market conditions.
The most important research findings#
Internships increase employability#
A meta-analysis published in the Journal of Vocational Behavior (2021) compiled 73 studies and showed that students with internships had a 15% higher probability of being employed six months after graduation compared to students without. The effect was strongest in vocational programs with structured internships.
Quality trumps quantity#
Not all internships produce the same results. Research from Stockholm University (2023) shows that three factors determine the effect:
| Factor | High effect | Low effect |
|---|---|---|
| Supervision | Active, structured | None or passive |
| Work tasks | Relevant to the education | Irrelevant or monotonous |
| Follow-up from school | Regular | None |
Students who reported good supervision had twice the conversion rate to employment.
LIA students establish themselves fastest#
The Swedish National Agency for Higher Vocational Education's follow-up shows that YH students with LIA have one of the highest establishment rates in the entire education system. Around 90% of YH graduates have relevant employment within one year. LIA plays a central role – most students report that it was during the LIA period they got in contact with their future employer.
APL has broader effects than grades show#
The Swedish Schools Inspectorate's reviews of APL show that students who had functioning workplace-based learning develop professional identity, self-confidence and networks – factors that don't show in grades but are decisive for employment.
International comparison#
| Country | System | Effect on employment |
|---|---|---|
| Germany | Dual apprenticeship system | Very high – 60–70% hired by training company |
| Switzerland | Structured apprenticeship | High – strong link between internship and labor market |
| Sweden | APL/LIA/VFU | Medium–high – varies by quality |
| USA | Standalone internships | Varies – paid internships yield better results than unpaid |
| UK | Placements | Medium – quality is uneven |
Sweden is well positioned but has potential to strengthen the connection through better matching and higher supervision requirements.
What the research doesn't say#
Causality vs correlation#
Most studies show correlation, not causality. Students who do internships may be more motivated from the start. That makes it difficult to isolate the internship's exact effect.
Industry differences are underestimated#
Internships in healthcare almost always lead to jobs – because the shortage is so great. Internships in humanities rarely lead to employment with the host organization. Combining all industries into one figure gives a misleading picture.
Unpaid internships are questioned#
International research, particularly from the USA and UK, shows that unpaid internships have significantly lower effects on employment – and that they reproduce socioeconomic inequalities. In Sweden this is less relevant since APL and LIA take place within the education, but the issue should be monitored.
What does this mean for internships?#
The research points clearly: it's not internships per se that produce effects but how they are implemented. This means that:
- Schools need to ensure supervisor training, matching quality and follow-up
- Companies need to provide relevant tasks and active supervision
- Students need to be aware that their own engagement affects the outcome
- Policymakers need to invest in infrastructure for better matching and quality assurance
How Prakto relates#
Prakto is a digital internship platform that addresses several factors the research highlights: matching based on more than geography, structured follow-up during the period and documentation that makes it possible to measure and improve internship quality. Platforms that make data available can help ensure that researchers' recommendations are actually implemented.
Frequently asked questions about research and internships#
Is there Swedish research on internship effects?#
Yes. Stockholm University, University of Gothenburg and SCB have published studies. The Swedish National Agency for Higher Vocational Education follows up on YH students' establishment annually.
Is 15 weeks of APL sufficient?#
Research gives no definitive answer. Longer internships generally produce better results, but quality during the period matters more than length.
Do internships always lead to jobs?#
No. Internships increase the probability but guarantee nothing. The effect depends on quality, industry and labor market conditions.
Which type of internship produces the best results?#
Structured internships with active supervision, relevant work tasks and clear connection to learning objectives.
How can I as a student maximize the effect?#
Engage actively, build relationships, document your learning and be clear about your interest in employment.
Conclusion#
Research confirms what we see in practice: workplace-based learning works – but only when implemented with quality. The supervisor's role, the relevance of tasks and the school's follow-up determine whether the internship becomes a springboard or a parking lot. Data and research give us the tools to do it well. The rest is about willingness.
Sources#
- Knouse, S.B. & Fontenot, G. (2008). Benefits of the business college internship. Journal of Employment Counseling
- Hora, M.T., Wolfgram, M. & Thompson, S. (2017). What do we know about the impact of internships on student outcomes? CCWT Research Brief
- Swedish National Agency for Higher Vocational Education – YH students' establishment, annual report 2025
- SCB – labor force barometer 2025
- Swedish Schools Inspectorate – quality review of APL
- Stockholm University, Department of Education – workplace-based learning, 2023
