Labs

Scientist-Practitioner Approach & Psychological Models

  • Scientist-Practitioner Framework: Integrates psychological empirical research into clinical practice by formulating hypotheses, evaluating treatment outcomes empirically, and treating disorders as experimental inquiries.

    • Clinical Benefits: Facilitates flexible, data-driven, client-tailored treatment plans and bridges research with clinical application via case reports.

  • Stress Coping Model (Lazarus and Folkman, 1984): Evaluates client health across biological, psychological, and social domains using three core components:

    • Stressors: Life events and environmental demands.

    • Mediating Processes: Appraisal and coping strategies (positive or negative).

    • Outcomes: Physical and psychological adaptations resulting from coping processes.

  • Meihana Model (Pitama et al., 2007): Alternative framework centered on collective well-being.

Qualitative Methods & Ethnographic Observation

  • Ethnographic Observations: Derived from social anthropology; utilizes qualitative immersion in a community to gather unstructured data on localized social practices and behaviors.

  • Research Approaches:

    • Inductive Research: Qualitative approach where categories and theories emerge directly from observed data.

    • Deductive Research: Quantitative approach beginning with predefined hypotheses and structured experiments.

  • Evaluation of Ethnography:

    • Benefits: Provides in-depth, intensive data; challenges preconceived assumptions; generates novel theories.

    • Limitations: Risk of narrow focus on trivial information; outcomes and category derivation can be uncertain.

  • Key Clinical Concept: Gender dysphoria refers to the distress accompanying incongruence between experienced/expressed gender and assigned gender.

Psychometrics & Screening Instruments

  • Psychometrics: Focuses on developing and validating measurement tools for latent, unobservable psychological constructs.

  • Reliability (Consistency):

    • Test-Retest: Score stability across two separate time points.

    • Split-Half / Internal Consistency: Consistency between divided halves of a questionnaire.

    • Alternate/Parallel Form: Consistency across two different versions of equivalent items.

    • Inter-Rater: Level of agreement between independent observers.

  • Validity (Accuracy):

    • Face Validity: Superficial appearance of measuring the intended construct.

    • Concurrent Validity: Correlation with established measures of the same construct.

    • Predictive Validity: Accuracy in predicting specified future outcomes.

    • Discriminant Validity: Absence of correlation with unrelated constructs.

  • Diagnostic Screening Metrics:

    • True Positive: Disorder present; test detects it.

    • False Positive: Disorder absent; test detects it.

    • False Negative: Disorder present; test fails to detect it.

    • True Negative: Disorder absent; test confirms absence.

  • Screening Evaluation Tools: Comparative instruments include the DSM-5-TR criteria, CAGE questionnaire, units of alcohol per week, and the Rosenberg self-esteem scale; statistical analyses are conducted in Jamovi.

Childhood Clinical Disorders & Expectancy Effects

  • Oppositional Defiant Disorder (ODD): Core dimensions include angry/irritable mood, argumentative/defiant behavior, and vindictiveness (e.g., frequent tantrums, active defiance, provoking others).

    • Uniquely can be context specific whereas ADHD and MDD are pervasive across all disorders

  • Major Depressive Disorder (MDD): Marked by persistent irritability/agitation, sadness, anhedonia, feelings of worthlessness, impaired concentration, and suicidal ideation.

  • Attention Deficit / Hyperactivity Disorder (ADHD): Classified into three presentations: predominantly inattentive, predominantly hyperactive-impulsive, or combined. Females frequently present with inattention, contributing to lower diagnosis rates.

  • Diagnostic Overlap & Misdiagnosis Risks: Shared behavioral symptoms across discrete DSM-5 categories risk inappropriate interventions and negative labeling.

  • Teacher Expectancy Study (Rosenthal and Jacobson, 1966):

    • Evaluated whether arbitrary teacher expectations impact academic achievement.

    • Teachers were falsely told that 20%20\% of randomly assigned students were identified as academic spurters via the "test of inflected acquisition."

    • Standardized testing administered 44 times across 1818 months showed labeled students achieved significantly greater academic gains than controls, illustrating the profound influence of expectancy effects.

Adult ADHD & Assessment Scales

  • Developmental Trajectory: ADHD affects approximately 5%5\% of school-aged children. Symptoms frequently persist into adulthood, with overt hyperactivity transitioning into restlessness and fidgeting, while inattention and impulsivity endure.

  • Diagnostic Criteria Adjustments: Adult presentations often use adjusted symptom thresholds (e.g., 55 of 99 symptoms rather than the childhood standard of 66 of 99).

  • Assessment Instruments:

    • Young Adult Rating Scale (YARS): Self-report scale assessing ADHD construct validity via Total (YARS-T), Inattention (YARS-A), and Impulsivity (YARS-I) subscales.

    • Continuous Performance Test (CPT): Objective computerized test assessing attention/vigilance via error rate (CPT-A) and impulsivity via reaction time (CPT-I).

Neuropsychological Assessment & Clinical Conditions

  • Neuropsychological Assessment: Evaluates brain-behavior relationships and the degree of impairment from neurological damage using standardized behavioral tasks and neuroimaging (MRI, CT scans).

  • Clinical Conditions:

    • Korsakoff / Wernicke-Korsakoff Syndrome: Thiamine deficiency caused by excessive alcohol consumption; manifests as amnesia and executive planning deficits.

    • Alzheimer's Disease: Characterized by progressive memory impairment.

    • Huntington's Disease: Involuntary movements paired with anterograde amnesia.

    • Parkinson's Disease: Motor execution deficits and resting tremors.

    • Aphasia: Impairment in speech/language (commonly secondary to stroke).

    • Apraxia: Motor planning and execution deficits.

    • Agnosia: Inability to recognize familiar objects or individuals.

  • Neuropsychological Test Battery: Includes the Brown-Peterson measure of short-term memory, letter cancellation task, hidden figures task, block arrangement, verbal fluency task, complex figure task, manual dexterity board, Purdue pegboard task, and the street map task.