Presentation of Research Hypotheses (APA 6th) How is the research hypotheses presented in a qualitative research?

For example, the statement of the problem is stated this way: 

The study generally aims to -----. Specifically, it seeks to find answers to the following questions:







Now, I'm wondering how a research hypotheses should be presented
As far as I am aware APA style does not have specific formatting for problem statements or hypothesis. The APA Example paper lacks a clear problem statement and has a paragraph that describes what was done.


  In the current research, therefore, we compared young and older adults’ detection of four 
  categories of emotional information (positive high arousal, positive low arousal, negative high 
  arousal, and negative low arousal) with their detection of neutral information. The positive and 
  negative stimuli were carefully matched on arousal level, and the categories of high and low 
  arousal were closely matched on valence to assure that the factors of valence (positive, negative) 
  and arousal (high, low) could be investigated independently of one another...