COL 1 Study Guide Updated

When to use OTSeeker

EBP research

Characteristics:

• trials

• Systematic reviews

CINAHL stands for

Simulating index to Nursing and Allied Health Literature

CINHAUL has what type of data

OS/OT literature

CharacteristicsÑ:

• research on health promotion, adaptation, ccc

What database is used for strategies and interventions of occupational balance

PubMed and CINAHL

what database can be used to find studies for occupational identity and well-being

ERIC and SCOPUS

When looking for resources on occupational justice, inclusion, and equitable access use:

OTDBase and CoChrane Library

Databases that provide insight into adaptation strategies and case studies use which two databases

OTSeeker and CINAHL

Provided the Table, what is the sample size?

32

Provided the table, what is the percentage of participants that have a 2 year college degree?

16%

Using the following quote from the Boden Article on Menstrual Hygiene, “Demographic survey results indicated that all 32 individuals identified their gender as women, with 31 identifying their sex as female and one as intersex” this specific part of the data collected is called?

categorical

Time, measurements, speed, weight/height, are what kind of data points?

continuous

what are the measures of central tendency

mean, median, mode

mean

average

median

middle score, resistant to outliers

mode

most frequent score

what are the measures of variability

standard deviation and variance

what is variance used for

find the average spread of scores

What is the purpose of distribution curves

to show frequency of scores

What is the shape of a normal distribution

bell-shape

Provided this chart from Chapter 23 of the textbook, what is the mean?

7.50

What is the interpretation of the mean?

the average population birth weight was 7.5 lbs

Provided the table below chart from Chapter 22 of the textbook, what is the mode?

21 or 22

What is statistical inference used for?

used to determine whether observed patterns are meaningful or due to chance

What is statistical significance?

meaningful patterns observed in treatments relationships, causes and effects

 p < .05 —> If the p value of statistic calculated is less than 0.05, what can we say about the study

that the findings of the study were statistically significant

  p ≥ .05 —> If the p value of statistic calculated is greater than 0.05, what can we say about the study:

that the findings of the study were NOT statistically significant

How would you interpret a 95% confidence interval

there is a 95% chance that the confidence interval captures the population mean

If you wanted greater assurance that results are more reliable than 0.05 what level would you use?

0.01

when should you use a one-tailed test

when the direction of relationship is known

when should you use a two tailed test

when the direction of the relationship is unknown

what is non-parametric data used for?

when data data collected is extremely skewed

what does parametric data examine?

focuses on median, frequency, rankings and counts of CAtEGORICAL or ORDINAl data

when would you use the Wilcoxon Signed Rank Test

when you cannot use a paired t-test since the data does not follow a typical distribution

In a coffeeshop, the manager wants to see if jazz music is relaxing. So she asks 8 customers to rank how they feel on a scale of 1-10 when pop music is playing and then again when jazz music is playing.

What statistical test would you use?

Wilcoxon Signed Rank Test

In a coffeeshop, the manager wants to see if jazz music is relaxing. So she asks 8 customers to rank how they feel on a scale of 1-10 when pop music is playing and then again when jazz music is playing.

If the p = 0.048 in this word problem, what can we say about jazz music and its effect on mood?

It is statistically significant that the customers find jazz music more relaxing than pop music

what is correlation used for?

to examine the relationship between x and y in exploratory studies

what is the purpose of correlation coefficients

measure direction and strength of a relationship

if the correlation coefficient of a study is measured at -0.87 , what can we say about the relationship

the relationship between the variables is negatively strong

why use scatterplots

to visually represent relationships

Why did the Stav Study use a chi-square test

because the researchers wanted to test associations between categorical data points and see if sample distribution matched population distribution

What is the purpose of a paired t-test

to use in cases of repeated measures

what is the definition of a t-test?

statistical ratio used to compare two means from either two independent samples or one sample with repeated measures

what is the purpose of a t-test

to observe if intervention had a significant difference or was just chance

what is an example of a “matched value” in a paired t-test

the before and after scores of the same participant , or two participants that share a similarity that can be compared (like same starting point)

what is the perk to paired t-tests

reduce variance and increase power because extraneous factors are the same for both measures

Provided this section from the table from the Benham 2020 article on paired t-tests where the participants are asked whether or not technology program TAM would improve different areas of job performance before and after use of it, what can be interpreted about the perceived usefulness and why?

after using TAM, participants had an increase in the perceived usefulness of 3D printers improving job quality for occupational therapists

we know this because the p-value provided is 0.005 which is <0.05

Pulling from the Benham article for Paired-T Tests, pick which of the underlined would best fill in the parenthesis and why:

“From pre- to posttest over 12 wk, (NON SIGNIFICANT OR SIGNIFICANT) differences were obtained for perceived usefulness, t(57) = −3.431, p = .001, d = 0.451; perceived ease of use, t(57) = −8.583, p < .001, d = 1.136; attitude toward using, t(57) = −2.545, p = .014, d = 0.334; and intention to use, t(57) = −5.024, p < .001, d = 0.660.

SIGNIFICANT, because the p-values calculated are less than 0.05

What is the definition of t-value

effect size / variability of data

what does it mean if the t-value is negative in a paired t-test study on pre and post test scores?

that the post test scores were higher than the pre-test scores