Interventions and Evaluation in Applied Psychology

Interventions and Evaluation in Applied Psychology

Introduction to Interventions

• Interventions form the core of applied psychology, focusing on developing programs and ensuring their effectiveness.

• The primary goal is to address social issues and bring about positive change.

• Often involves changing people's behavior, thoughts, or emotions for their betterment.

Defining Intervention Programs

• General Definition: Any action or program designed to change a specific outcome.

• Psychological Context: Aims to change maladaptive behaviors, thoughts (e.g., in therapy), or emotions that are hindering an individual's well-being or functioning.

• Goal: To improve the well-being and functioning of individuals, communities, or patients.

Factors Influencing Intervention Type

• Financial Resources: The budget available for development and implementation.

• Scope: Whether the intervention targets an individual (e.g., therapy), a community, a city, a country, or even worldwide. Larger scopes require more extensive involvement.

• Societal Factors: Prevailing attitudes and specific goals of the intervention can shape its design over time (e.g., interventions targeting attitudes like racism).

Domains of Psychological Intervention Application

Psychological interventions are broadly applicable across nearly all areas of life:

• Health Programs:

  • Promoting physical and mental health.

  • Examples: Helping people quit smoking, therapies for depression.

  • Cognitive Behavioral Therapy (CBT): Designed to improve mental health outcomes by targeting maladaptive thoughts and changing thinking patterns.

• Workplace Organizations:

  • Improving outcomes at all organizational levels.

  • Examples: Employee satisfaction, performance (technical knowledge, motivation, efficiency).

  • Applies to various organizations beyond businesses, including military, hospitals, etc.

• Justice System:

  • Initiatives to ensure fair and just application of laws.

  • Examples:

    • Jury Bias: Addressing inherent biases in jury decisions that significantly influence trial outcomes.

    • Eyewitness Testimonies: Improving reliability and mitigating issues associated with eyewitness accounts.

• Education:

  • Strategies to improve learning outcomes.

  • Examples: Managing ADHD in the classroom, boosting reading comprehension.

  • Noted decline in Canadian reading comprehension highlights the need for interventions.

• Family and Relationships:

  • Counseling (group or family therapy) to improve communication and conflict resolution skills.

The Structured Process of Psychological Intervention Programs

Intervention programs typically follow a structured, multi-phase process:

1. Assessment Phase:

   • Objective: To gather comprehensive data and information about the problem.

   • Key Questions: What is the scope, causes, outcomes, who is affected, and are there geographical limitations?

   • Methods: Psychological assessments of impacted individuals, assessments of family/community members, social workers, and other relevant stakeholders.

   • Outcome: Determining the nature and scope of the problem, and considering relevant theories to guide intervention design.

2. Design and Planning Phase:

   • Objective: Develop a tailored intervention based on the assessment.

   • Elements:

     • Identifying both long-term and short-term goals.

     • Selecting effective strategies, often based on existing theories, prior research, or successful interventions.

     • Determining specific methodologies.

   • Differentiating from Basic Research: Interventions heavily involve

Introduction to Intervention Evaluation

• Interventions apply psychology to solve social issues.

• Central Question: How do we know interventions are effective and achieve their intended purpose?

• Evaluation's Role: Assess the effectiveness and efficiency of interventions.

  • Interventions are costly, require significant resources and involve many people (stakeholders).

  • Stakeholders want assurance that time, money, and effort are not wasted, and resources are actively utilized.

• Evaluation Techniques: Various methods are used, many familiar from basic and applied psychology.

  • Survey research, questionnaires.

  • Statistical analyses.

  • Qualitative research elements.

  • Similar methodologies, instruments, and tools are used across different research types.

Goals of a Program

• A program is an organized set of activities aimed at producing some kind of change.

• Objective: Ensure positive change for participants (e.g., improving lives) or the environment (e.g., making it easier for individuals to thrive).

• Assessment Necessity: Each program has specific change goals and expected outcomes, which must be assessed to determine if objectives are met.

• Key Questions:

  • To what extent has the desired change occurred?

  • Was the change a direct result of program activities, or attributable to something else?

    • Hawthorne Effect: Change can occur simply because people are being studied or observed, not due to program activities themselves.

• Examples of Programs:

  • Campaigns against drinking and driving, speeding, signal use.

  • Student support programs (e.g., high school to university transition).

  • Literacy programs.

  • Nutrition programs for low socioeconomic status (SES) children.

• All programs rely on psychological principles, concepts, and research in their design.

• Measurement: To evaluate, we must measure the expected changes.

  • For nutrition programs, expected changes include improved academic outcomes, general functioning, energy levels, and mood.

  • Researchers must decide which changes are most important to measure, as it's not always possible to measure everything.

Types of Program Evaluation

• Evaluation encompasses various aspects, not just simple pre/post questionnaires.

• Formative Evaluation:

  • Focus: Assessing the program during its development and implementation phases.

  • Purpose: Monitors the intervention as it progresses.

  • Data Collection Methods: Feedback from participants and other stakeholders (e.g., lawyers, judges for youth delinquency programs), initial assessments, small-scale testing.

  • Goal: Ensure the program is designed to be as effective as possible, targets necessary changes, and is implemented as intended. Allows for adjustments based on early feedback.

• Summative Evaluation:

  • Focus: Conducted after the intervention is completed.

  • Purpose: Determines the overall effectiveness and impact of the program.

  • Methods: Measuring outcomes, comparing pre- and post-intervention data, assessing if intended goals were achieved.

  • May also include whether a curriculum was delivered within the set timeframe.

  • Importance: Determines whether to continue, expand, or significantly modify the program.

• Process Evaluation:

  • Focus: Examines how the intervention was implemented, rather than just outcomes.

  • Analyzes: Delivery of the intervention, adherence to the original design, whether the intended population was reached.

  • Seeks: Potential deviations from the plan, identifies areas for improvement (e.g., recruitment, message effectiveness).

  • Often involves consulting program facilitators for their perspective on issues encountered.

• Outcome Evaluation:

  • Focus: Measures direct changes in participants resulting from the intervention.

  • Assesses: Both short-term and long-term outcomes.

  • Targets specific behaviors, emotions, or cognitions the program aimed to change.

• Impact Evaluation:

  • Focus: Goes beyond immediate outcomes to examine broader, long-term systemic effects of the intervention.

  • Looks at: Wider social, economic, or community changes (e.g., reduction in caseloads for judges/social workers due to youth justice programs).

  • Assesses effects on populations beyond the direct target, considering other stakeholders.

Components of Program Evaluation

• Needs Assessment:

  • Timing: Conducted before program development begins.

  • Purpose: Identify the problem, its prevalence, the number of people impacted, and whether a program would have a measurable impact.

  • Avoids developing programs for non-existent or insignificant problems.

  • Definition of Need: Must be objectively defined as a measurable gap between how things are and how they should be, based on statistics and data, not anecdotal evidence or feelings.

• Theory Grounding:

  • Programs must be well-grounded in psychological theory.

  • Example: Media messages on campus to highlight real social norms about binge drinking were based on Social Norms Theory.

    • Social Norms Theory: Maladaptive behaviors result from a mismatch between perceived and actual norms. Learning correct perceptions motivates behavioral change.

    • Supported by decades of research.

  • Selection: Important to choose theories that are highly supported by research and have proven effective in the past (e.g., reducing vaping among high school students).

  • A good theory guides expectations about outcomes: if $X$ is done, then $Y$ should be observed based on theory and research.

• Program Logic Model:

  • A visual representation showing expected components and outcomes (e.g., participants do A, B, C, D, leading to X, Y, Z).

  • Based on theoretical foundations.

• Monitoring:

  • Ensuring the program functions as intended after design and implementation.

  • Involves regular check-ins with participants and facilitators to gauge their experience and verify delivery fidelity.

• Outcome Assessment:

  • Determines whether the program's goals have been met.

  • Can be an end-of-program assessment or ongoing check-ins for long-term programs (e.g., $6$ months, $1$ year).

  • Information collected feeds back into the program to allow for modifications.

Example: Cognitive Behavioral Therapy (CBT) for Sports Stress

• Context: Professional and competitive sports involve significant stress (e.g., world champion karate niece example).

• Nature of Stress:

  • Not always negative; moderate stress can be a motivator and useful for task completion.

  • Excessive stress is unmanageable and harmful to mental and physical health.

• Sources of Stress:

  • Internal: Personality, past experiences, living in a highly stressful environment (leading to hyper-responsiveness to smaller stressors).

  • External: Pressure from teammates, parents, coaches (similar to academic pressure from parents).

• Coping Strategies:

  • How athletes handle stress depends on their typical coping strategies.

  • Adaptive Strategies: Effective and healthy ways of dealing with stress.

  • Maladaptive Strategies: Unhealthy behaviors like binge drinking or drug use.

  • Poor stress management can lead to higher injury risk, anxiety, depression, loss of motivation, burnout, damaged relationships, and team conflict.

CBT as an Intervention

• Definition: Cognitive Behavioral Therapy (CBT) is a type of talk therapy focusing on the interconnectedness of negative thought patterns and unhelpful behaviors.

• Empirical Basis: Extensive evidence shows thoughts profoundly impact behaviors. Interrupting negative thoughts can lead to positive behavioral changes.

• Cycle: Negative thought patterns and unhelpful behaviors feed into each other, creating a cycle.

• Goal: Break this cycle by introducing better ways of thinking, leading to more adaptive behaviors.

• Concrete Strategies (unlike more abstract psycho-therapies):

  • Identifying Unhelpful Thoughts: Helping individuals recognize automatic, unbidden negative thoughts and consciously interrupt them.

  • Behavioral Modification: Changing environments or social interactions that reinforce negative behaviors (e.g., separating from friends who smoke).

  • Relaxation Techniques: Teaching breathing exercises, mindfulness, and meditation for stress and anxiety management.

  • Situational Avoidance: Steering clear of situations that reinforce maladaptive behaviors if possible.

CBT for Soccer Players: Study Design and Findings

• Researchers: Team in Spain tested CBT intervention with young male soccer players to reduce stress.

• Participants: $19$ competitive soccer players.

• Program: $8$ CBT sessions over the regular season, focusing on stress management techniques.

• Measurement: Pretest-posttest design using questionnaires to measure stress control, motivation, and mental skills before and after the program.

• Hypothesis: Soccer players participating in the intervention would display more stress control after the intervention compared to before.

• Findings: The intervention was effective. Participants acquired and internalized CBT techniques, applying them to improve stress levels in both practice and competitions.

Limitations of the Study Design

• Pretest-Posttest Design Limitations:

  • No control group, making it difficult to rule out alternative explanations for observed changes (e.g., the Hawthorne effect, natural maturation).

  • Often the most practical approach in real-world psychosocial studies despite limitations.

• Mitigating Limitations:

  • Random Assignment: Recruiting multiple teams and randomly assigning them to either the CBT intervention or a control condition.

  • Time-Lag Designs: Staggering intervention delivery (e.g., one group receives it for $6$ months, then swaps with a control group for $6$ months).

• Interpretation: While not perfect, such designs offer valuable insights but require caution in interpreting results.