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This study investigated the impact of two sets of response option formats on outcomes of the BAS acculturation scale. Using an experiment, comparisons were made for both English and Spanish language versions of the survey. Composite score differences were small or non-significant when a middle option was included with a 5-point format compared to no middle option for a 4-point format. However, when a fifth response option was included in the lower quadrant of a response scale, to create a more equally balanced response set, outcomes for the 5-point format were significantly higher than the 4-point format. Psychometric refinements can be important for constructs such as cross-culture measurement where population subgroups can be impacted differently based on their reported outcomes.