Abstract
The objective of this study is to explore factors that affect the decisions single-child parents make when considering whether to have a second child applying the psychological theory of planned behaviour. Quantitative survey data from a sample of parents with a single child selected from a Slovak representative sample was used to perform regression analysis assessing effects of attitudes, subjective norms and perceived control on intention to have a second child within the next three years. Results largely confirm the model captured in TPB. All three components of the TPB have a significant effect on intentions to have a second child. A particular set of liberal and conservative attitudes facilitate plans to have a second child. The strongest predictors, however, are the perceived pressure from the social environment and subjective desire to have a child. The study concludes that, along with demographic and sociological variables, psychological factors play a significant role in decision-making processes concerning reproductive planning.