Alpha in Research & Statistics

In research, alpha is the probability of rejecting a true null hypothesis.

In testing, alpha also refers to a measure of internal consistency—see Cronbach’s coefficient alpha.

Alpha waves are brain waves that can be measured on an electroencephalogram (EEG). Alpha waves are associated with daydreaming, meditating, and mindfulness.

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Personal Self-Concept Questionnaire (PSQ)

The Personal Self-Concept Questionnaire ( PSQ ) Overview The Personal Self-Concept Questionnaire (PSQ) measures self-concept based on ratings of 18 items, which are grouped into four categories: Self-fulfilment, autonomy, honesty, and emotional self-concept. It is a likert-type rating scale with high internal consistency values and has been used with youth and adults. Subscales : The PSQ has four subscales 1. Self-fulfilment (6 items) 2. Autonomy (4 items) 3. Honesty (3 items) 4. Emotional self-concept (5 items) 👉 [ Read more about Self-Concept and Self-Identity] The PSQ is a Likert-type scale with five response options ranging from totally disagree to totally agree. Reliability and Validity In the first study, coefficient alpha = .85 and in study two, alpha = .83. Data analysis supported a four-dimensional model (see the four categories above). Positive correlations with other self-concept measures were statistically significant. Other notes The authors e...

Mathematics Self-Efficacy and Anxiety Questionnaire (MSEAQ)

Scale name: Mathematics Self-Efficacy and Anxiety Questionnaire (MSEAQ) Scale overview: The Mathematics Self-Efficacy and Anxiety Questionnaire (MSEAQ) is a 29-item self-report measure of both mathematics self-efficacy and mathematics anxiety. Author: Diana Kathleen May Response Type: Items are rated on a 5-point Likert-type scale following a “no response” option: 1 = Never 2 = Seldom 3 = Sometimes 4 = Often 5 = usually Sample items 1. I feel confident enough to ask questions in my mathematics class. 6. I worry that I will not be able to get a good grade in my mathematics course. Subscales and basic statistics for the MSEAQ Self-Efficacy M = 44.11, SD = 10.78, alpha = .93 Anxiety M = 46.47, SD = 12.61, alpha = .93 Total Scale M = 90.58, SD = 22.78, alpha = .96 Reliability: See the Cronbach’s alpha levels reported above. Validity: There were significant ...

Spiritual Bypass Scale (SBS-13)

Assessment name: Spiritual Bypass Scale-13 (SBS-13) Scale overview: To assess the observed spiritual bypassing phenomenon, Fox et al. (2017) developed the 13 item Spiritual Bypass Scale . Authors: Fox, Cashwell, and Picciotto [ Read more about Spiritual Bypassing in Psychotherapy] Response Type: The 13 items are rated on a four-point scale of agreement. Scale items Data analyses from two ethnically diverse US adult samples supported two factors (Psychological Avoidance, PA; Spiritualizing, SP). PA example: When I am in pain, I believe God will deliver me from it SP example: When someone I know is in trouble, I believe it is because they have done something wrong spiritually. Psychometric properties Cronbach’salphas: Total scale = .85, PA = .82; Sp = .75. The total SBS score was associated with the ASPIRES subscales except for connectedness. PA was associated with depression and SP with stress and anxiety (DASS-21). The over...

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