How would you refactor this?

snippet.java

    
    /**
     * Get associated terms for this measurement with the given standard deviation value.
     *
     * @param standardDeviation the measurement's standard deviation value or {@code null} for all associated terms
     * @return a list of terms
     */
    public Collection<VocabularyTerm> getAssociatedTerms(Double standardDeviation)
    {
        ResourceBundle configuration = ResourceBundle.getBundle("measurementsAssociatedTerms");
        List<VocabularyTerm> terms = new ArrayList<>();

        if (null == standardDeviation || standardDeviation <= -3) {
            addResolvedTermsToList(configuration, this.getName(), "extremeBelowNormal", terms);
        }
        if (null == standardDeviation || standardDeviation <= -2) {
            addResolvedTermsToList(configuration, this.getName(), "belowNormal", terms);
        }
        if (null == standardDeviation || standardDeviation >= 2) {
            addResolvedTermsToList(configuration, this.getName(), "aboveNormal", terms);
        }
        if (null == standardDeviation || standardDeviation >= 3) {
            addResolvedTermsToList(configuration, this.getName(), "extremeAboveNormal", terms);
        }

        return terms;
    }