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Measuring Stress: Methods and Assessment

Introduction to Assessment

Why Measurement is Vital

Measuring stress is vital for research and clinical practice. It involves subjective self-report methods and objective physiological assessments. Both approaches have advantages and limitations.

Assessment Approaches

1

Self-Report Scales

Relies on individuals’ perceptions and experiences of stress. Easy to administer, provides subjective data.
2

Physiological Measures

Objective indicators reflecting the body’s response to stress via the autonomic nervous system.

Key Terminology

🗓️

SRRS

Social Readjustment Rating Scale. Assesses stress via major life events.
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LCU

Life Change Unit. Score indicating relative stressfulness of an event.
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Hassles

Minor daily irritations measured by Kanner et al. (1981).
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SCR

Skin Conductance Response. Measures sympathetic arousal.

SRRS Scoring Principle

Total Score > 300 LCU = High Risk
The total score derived from major life events experienced over a given period (typically 12 months) can predict the likelihood of stress-related illness.

SRRS Strengths & Limitations

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StrengthsQuantifies the overall stress burden. Facilitates correlation between stress and health outcomes.
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LimitationsIgnores individual differences in response to the same events. Does not differentiate between positive and negative life changes. Retroactive self-report may suffer from memory biases.

SRRS Life Change Units (LCU)

Life Event Stress Score (LCU)
Death of a spouse 100
Divorce 73
Marriage 50
High Risk Threshold 300+

Hassles and Uplifts Scale

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StrengthsCaptures ongoing, everyday sources of stress missed by life event checklists. Accounts for positive uplifts that can buffer stress impact.
❌
LimitationsRelies heavily on subjective perceptions. May be influenced by current mood or personality traits.

Skin Conductance Response (SCR)

Sweat Gland Activity ↑ = Conductance ↑
The skin’s ability to conduct electricity changes with sweat gland activity, which increases during sympathetic arousal (fight-or-flight). Higher skin conductance indicates greater activation.

Other Physiological Indicators

Less common in A-Level syllabus but crucial for deeper research.

Measure Source Relevance
Cortisol Saliva, Blood, Urine Indicates activation of the HPA axis.
HRV Heart Rate Variability Stressed individuals show decreased HRV due to sympathetic dominance.

Comparing Methods

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Is stress only defined by physiological arousal?
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No. Self-reports capture subjective emotional experience, which is essential since stress is partly psychological. Physiological measures may not always match subjective reports.

Research Practice Tip

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Comprehensive Picture: Combining both self-report and physiological approaches offers a fuller picture of stress, as discrepancies often occur between conscious report and bodily reaction.

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Measuring Stress Deck
Term
Approaches to Measuring Stress

What are the two main approaches to measuring stress?

Answer
Definition

Self-report methods and physiological assessments.

Term
Social Readjustment Rating Scale (SRRS)

What does the SRRS assess?

Answer
Definition

Stress levels based on major life events and their assigned Life Change Units (LCUs).

Term
High Risk SRRS Score

What score on the SRRS indicates a high risk for stress-related illness?

Answer
Definition

A score over 300 LCUs.

Term
SRRS Limitation

Name a limitation of the SRRS.

Answer
Limitation

It ignores individual differences in response to events and does not distinguish positive from negative changes.

Term
Hassles and Uplifts Scale

What does the Hassles and Uplifts Scale measure?

Answer
Definition

Frequency and severity of minor daily hassles and positive uplifts.

Term
Importance of Hassles and Uplifts Scale

Why is the Hassles and Uplifts Scale important?

Answer
Importance

It captures ongoing, everyday stressors and positive events that affect wellbeing.

Term
Skin Conductance Response (SCR)

How does the SCR measure stress?

Answer
Definition

By recording changes in electrical conductance of the skin due to sweat gland activity during sympathetic arousal.

Term
Strength of Physiological Measures

What is a strength of physiological stress measures like SCR?

Answer
Strength

They are objective and have high temporal sensitivity.

Term
Limitation of Physiological Measures

Give one limitation of physiological measures of stress.

Answer
Limitation

They may be affected by environmental factors and cannot distinguish between stress and other emotions like excitement.

Term
Combining Measures

Why combine self-report and physiological measures?

Answer
Reason

To get a more complete understanding of both subjective experience and bodily stress responses.

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🧠 Measuring Stress Quiz

1. What does a high score on the Social Readjustment Rating Scale (SRRS) predict?

A score above 300 LCUs on the SRRS indicates a greater likelihood of developing stress-related health problems.

2. Which of the following is a key limitation of self-report stress scales?

Self-report methods rely on individuals’ memory and perception, which can be biased.

3. Skin Conductance Response (SCR) measures stress by detecting changes in:

SCR records electrical conductance changes caused by sweat gland activity during stress.

4. True or False: The Hassles and Uplifts Scale only measures negative daily events.

It measures both minor daily hassles and positive uplifts.

5. Why is it useful to combine self-report and physiological methods when measuring stress?

Combining methods gives a more complete picture of stress.

📊 Results

  • Notes and Quiz
  • Psychology
  • AS & A Level
  • Stress Therapies
  • AQA