wellness10/LifeSnaps_dataset

• PAPER: https://www.nature.com/articles/s41597-022-01764-x

BREQ-2. For the BREQ-2 scale, each item is again assigned to a factor on which that item is scored (i.e., of the fve factors: (1) Amotivation, (2) External regulation, (3) Introjected regulation, (4) Identifed regulation, (5) Intrinsic regulation). Once scores are assigned to all of the items, we calculate each user’s mean for every factor, according to the scoring instructions (http://exercise-motivation.bangor.ac.uk/breq/brqscore.php). We also create a categorical variable describing the self-determination level for each user, namely the maximum scoring factor. PANAS. For the PANAS scale, each item contributes to one of two afect scores (i.e. (1) Positive Afect Score, or (2) Negative Afect Score). Once items are assigned to a factor, we sum up the item scores per factor as per the scoring instructions (https://ogg.osu.edu/media/documents/MB%20Stream/PANAS.pdf). Scores can range from 10 to 50, with higher scores representing higher levels of positive or negative afect, respectively.

TTM. For the TTM scale, each user is assigned a stage of change (i.e., of the fve stages: (1) Maintenance, (2) Action, (3) Preparation, (4) Contemplation, or (5) Precontemplation) based on their response to the respective scale. Regarding the Processes of Change for Physical Activity, each item is assigned to a factor on which that item is scored (i.e., of the 10 factors: (1) Consciousness Raising, (2) Dramatic Relief, (3) Environmental Reevaluation, (4) Self Reevaluation, (5) Social Liberation, (6) Counterconditioning, (7) Helping Relationships, (8) Reinforcement Management, (9) Self Liberation, or (10) Stimulus Control). Once scores are assigned to all of the items, we calculate each user’s mean for every factor, according to the scoring instructions (https://hbcrworkgroup.weebly.com/transtheoretical-model-applied-to-physical-activity.html).

S-STAI. For the S-STAI scale, we initially reverse scores of the positively connotated items, and then total the scoring weights, resulting in the STAI score (the higher the score the more stressed the participant feels) as per the scoring instructions (https://oml.eular.org/sysModules/obxOML/docs/id_150/State-Trait-Anxiety-Inventory.pdf). To assign some interpretation to the numerical value, we also create a categorical variable, assigning each user to a STAI stress level (i.e., of three levels, (1) below average, (2) average, or (3) above average STAI score). Note that due to human error, the S-STAI scale was administered with a 5-point Likert scale instead of a 4-point one. During processing, we convert each item to a 4-point scale in accordance with the original.