Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: RCT of Two Speed of Processing Modes to Prevent Cognitive Decline in Older Adults
Brief Summary: This is second-generation study based on results from ACTIVE (Advanced Cognitive Training for Independent and Vital Elderly). This four-arm study is known as IHAMS (the Iowa Healthy and Active Minds Study). The investigators will formally test from an intent-to-treat perspective for differences on the primary and secondary outcomes based on whether participants were randomized to the basic on-site speed of processing training (SOPT) group (G1), to the on-site basic SOPT plus subsequent booster-training group (G2), to the basic at-home SOPT group (G3), or to the basic attention-control group (G4). Basic training involves 10 hours of either the SOPT or attention-control training during the first 6 weeks of participation. Booster-training involves 4 additional hours of SOPT training at 11 months of participation.


Options:
A: Arm Label: Clinic-based SOPT basic training; Type: EXPERIMENTAL; Interventions: Behavioral: SOPT basic training | Arm Label: Home-based SOPT basic training; Type: EXPERIMENTAL; Interventions: Behavioral: SOPT basic training | Arm Label: Crossword Puzzles Training; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Crossword Puzzles | Arm Label: SOPT basic and SOPT booster-training; Type: EXPERIMENTAL; Interventions: Behavioral: SOPT basic training, Behavioral: SOPT booster training | Intervention Type: BEHAVIORAL; Name: SOPT basic training; Assigned to Arm(s): Clinic-based SOPT basic training, Home-based SOPT basic training, SOPT basic and SOPT booster-training | Intervention Type: BEHAVIORAL; Name: Crossword Puzzles; Assigned to Arm(s): Crossword Puzzles Training | Intervention Type: BEHAVIORAL; Name: SOPT booster training; Assigned to Arm(s): SOPT basic and SOPT booster-training
B: Arm Label: LLM; Type: EXPERIMENTAL; Interventions: Other: LLM | Arm Label: PTC; Type: EXPERIMENTAL; Interventions: Other: FFA | Arm Label: CTC; Type: EXPERIMENTAL; Interventions: Other: Brain Fitness | Arm Label: Passive; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Active; Type: ACTIVE_COMPARATOR; Interventions: Other: VideoGrade | Intervention Type: OTHER; Name: LLM; Assigned to Arm(s): LLM | Intervention Type: OTHER; Name: FFA; Assigned to Arm(s): PTC | Intervention Type: OTHER; Name: Brain Fitness; Assigned to Arm(s): CTC | Intervention Type: OTHER; Name: VideoGrade; Assigned to Arm(s): Active
C: Arm Label: Nutritional Intervention; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Nutritional Intervention | Arm Label: Physical Exercise; Type: EXPERIMENTAL; Interventions: Other: Physical Exercise | Arm Label: Cognitive Training; Type: EXPERIMENTAL; Interventions: Other: Cognitive Training | Arm Label: Combined; Type: EXPERIMENTAL; Interventions: Other: Combined | Arm Label: Control Group; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: Nutritional Intervention; Assigned to Arm(s): Nutritional Intervention | Intervention Type: OTHER; Name: Physical Exercise; Assigned to Arm(s): Physical Exercise | Intervention Type: OTHER; Name: Cognitive Training; Assigned to Arm(s): Cognitive Training | Intervention Type: OTHER; Name: Combined; Assigned to Arm(s): Combined | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): Control Group
D: Arm Label: Exercise Intervention Group; Type: EXPERIMENTAL; Interventions: Behavioral: Exercise Intervention | Arm Label: Exercise Control group; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Exercise Control | Intervention Type: BEHAVIORAL; Name: Exercise Intervention; Assigned to Arm(s): Exercise Intervention Group | Intervention Type: BEHAVIORAL; Name: Exercise Control; Assigned to Arm(s): Exercise Control group

Answer: A