From: Validating a measure of motivational climate in health science courses
Validity Inference | Definition | Hypotheses | Analyses |
---|---|---|---|
Scoring | The scores from the scales adequately capture students’ perceptions of the psychological construct | H1: The mean values and standard deviations on the scales of the 19-item inventory will be similar to the values on the scales of the 26-item inventory H2: Scales in the same inventory will demonstrate evidence of coherence and independence (i.e., the scales will not be highly correlated) | A1: Computing means and standard deviations for the scales in the 19- and 26-item inventories A2.1: Computing Pearson’s correlation coefficients to assess associations between scales in the 19-item inventory A2.2: Conducting factor analysis for all items in the 19- and 26-item inventories |
Generalization | The items are representative of all theoretically possible items relevant to the construct | H3: The scale scores for the 19-item inventory will be highly correlated with scale scores for the 26-item inventory H4: Internal consistency analysis will indicate low error variance for each scale (i.e., Cronbach’s alpha and McDonald’s omega values will be acceptable) | A3: Computing Pearson’s correlation coefficients to assess associations between the 19- and 26-item inventory scales A4: Calculating Cronbach’s alpha and McDonald’s omega values for each scale |
Extrapolation | The scores from the scales are related to other variables as anticipated | H5: Each scale score will be related to other variables as anticipated | A5: Computing Pearson’s correlation coefficients to assess associations between the scales and student effort, instructor ratings, and course ratings |