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1 | title | description | identifier | valueTemplate | validValues | default | examples | parent | entityRef | fieldRef | owner | list | collapsing | repeating | recurring | recursing | identifying | |||||||||||||||||
2 | Study identifier | Unique identifier for this study | studyId | xdoi | ||||||||||||||||||||||||||||||
3 | General comments | Any general comments the coder wants to add about this study | comments | string | ||||||||||||||||||||||||||||||
4 | Year of collection | Year (or years) the data were collected | year.collected | integer.length4.multi | ||||||||||||||||||||||||||||||
5 | Year of publication | Year article was published | year.published | integer.length4 | ||||||||||||||||||||||||||||||
6 | Name of author(s) | Name(s) of authors | name.author | string.mandatory | ||||||||||||||||||||||||||||||
7 | Country | Country (or countries) where the data were collected | country | countrycode | ||||||||||||||||||||||||||||||
8 | Methods | Description of the methods used by the study | methods | |||||||||||||||||||||||||||||||
9 | Sample size | Total number of human participants in the study (note: the actual sample size may be larger if multiple observations are collected per participant) | N | integer | methods | |||||||||||||||||||||||||||||
10 | Sampling strategy | The strategy used by the researchers to collect their sample. Ameliorated self-selection is when participants were approached, rather than relying on their clicking a link. | samplingStrategy | categorical | "Purposefully select" || "Aselect" || "Likely self-selected" || "Ameliorated self-selection" | methods | ||||||||||||||||||||||||||||
11 | Setting | Whether the study concerns hearing protection behavior in leisure time setting, work setting, both, or not specified | setting | categorical | "leisure" || "work" || "both" || "not specified" | methods | ||||||||||||||||||||||||||||
12 | Description of study sample | Description of study sample | sample | string.mandatory | methods | |||||||||||||||||||||||||||||
13 | Type of study | Whether the study was qualitative, quantitative, mixed methods, or a review | methodType | categorical | "qualitative" || "quantitative" || "mixed methods" || "review" | methods | ||||||||||||||||||||||||||||
14 | Subsample | If studies contain several samples, specify them here | subsample | methods | TRUE | TRUE | ||||||||||||||||||||||||||||
15 | Name | A unique name (in this study), to be able to refer to this subsample later, and to easily find it afterwards | subsample.name | identifier | subsample | |||||||||||||||||||||||||||||
16 | Size | Sample size of subsample | subsample.N | integer | subsample | |||||||||||||||||||||||||||||
17 | Variables | The variables as used/observed in this study (i.e. operationalisations or aspects) | variables | methods | ||||||||||||||||||||||||||||||
18 | Operationalisation | An operationalisation (measurement or manipulation) used in the study | operationalisation | variables | TRUE | TRUE | ||||||||||||||||||||||||||||
19 | Operationalisation Name | A unique name (in this study), to be able to refer to this operationalisation later, and to easily find it afterwards | oper.name | identifier | operationalisation | |||||||||||||||||||||||||||||
20 | Measure | Method of measurement | oper.measureType | categorical | "Self-report questionnaire (digital or paper)" || "Interview (structured, semi-structured, or open)" || "Observation" || "Indirect measure (e.g. Implicit Association Test)" || "Other" | operationalisation | ||||||||||||||||||||||||||||
21 | Measure Name | Name of instrument used, name of developer & year developed (e.g. Social Comparison Scale, Allan & Gilbert, 1995) | oper.measureName | string | operationalisation | |||||||||||||||||||||||||||||
22 | Identifier of the construct | A unique identifier of this construct. This is either the UCID of the construct, if this is a determinant or proxy; or an identifier from the list provided in the 'variable identifiers' list in the extraction instructions - see https://extending-the-earcheck.gitlab.io/dct-files | oper.constructIdentifier | ucid | operationalisation | |||||||||||||||||||||||||||||
23 | Hearing protection behavior | When construct is a (proxy of) hearing protection behavior, specify what kind of behavior: not specified ("ns"), wearing hearing protection ("hp"), restricting exposure to loud music or noise ("restr") , limiting volume of music players or speakers ("limit"), using safe headphones ("safe"), a combination of at least two of the aformentioned behaviors ("multiple"), or other ("other"). | oper.constructHear | categorical | "ns" || "hp" || "restr" || "limit" || "safe" || "multiple" || "other" | operationalisation | ||||||||||||||||||||||||||||
24 | Moment | Moment(s) this variable was measured/manipulated. For cross-sectional studies, this can be omitted (i.e. NA), and will be set to '0' automatically. For longitudinal designs, the first measurement moment is always 0. | oper.moment | integer.multi | 0 | operationalisation | ||||||||||||||||||||||||||||
25 | Type of operationalisation | Whether this variable is a single measurement, or an aggregate (or a manipulation, but we will not extract those). | oper.type | categorical | "manipulation" || "item" || "aggregate" | operationalisation | ||||||||||||||||||||||||||||
26 | Type of data | "Measurement level" of this operationalisation. | oper.datatype | categorical | "numeric" || "logical" || "nominal" || "ordinal" || "string" | operationalisation | ||||||||||||||||||||||||||||
27 | Values | Possible values this variable can take: only valid for "nominal" or "ordinal" variables. | oper.values | integer.multi | operationalisation | |||||||||||||||||||||||||||||
28 | Labels | Labels for the values. | oper.labels | string.multi | operationalisation | |||||||||||||||||||||||||||||
29 | Validity Verified | The authors expliticly make a statement that they verified the validity of this operationalisation as it was applied in this sample. Note that only statements containing "valid" or "validity" can qualify as such. | oper.valid.verified | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
30 | Validity Criteria Justified | The authors expliticly explain why the indicators they looked at to verify the validity of this operationalisation are adequate to that end. Note that only statements containing "valid" or "validity" can qualify as such. | oper.valid.justifed | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
31 | Validity Established | The authors explicitly state that this operationalisation was valid as it was applied in this sample. Note that only statements containing "valid" or "validity" can qualify as such. | oper.valid.established | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
32 | Reliability Verified | The authors expliticly make a statement that they verified the reliability of this operationalisation as it was applied in this sample. Note that only statements containing "reliable" or "reliability" can qualify as such. | oper.reliable.verified | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
33 | Reliability Criteria Justified | The authors expliticly explain why the indicators they looked at to verify the reliability of this operationalisation are adequate to that end. Note that only statements containing "reliable" or "reliability" can qualify as such, unless the authors explicitly justify why internal consistency, in the case of this measurement instrument in this sample, is indicative for reliability. | oper.reliable.justifed | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
34 | Reliability Established | The authors explicitly state that this operationalisation was reliable as it was applied in this sample. Note that only statements containing "reliable" or "reliability" can qualify as such. | oper.reliable.established | yesNoUnclear | operationalisation | |||||||||||||||||||||||||||||
35 | Description | A description of this variable (can be more extensive than the name) | oper.description | string | operationalisation | |||||||||||||||||||||||||||||
36 | Comment | Any relevant comments the coder wants to add | oper.comment | string | operationalisation | |||||||||||||||||||||||||||||
37 | Aspect | An aspect (part of human psychology) reported in this study | aspect | variables | TRUE | TRUE | ||||||||||||||||||||||||||||
38 | Aspect name | A unique name (in this study), to easily find / meta-analyse / group this aspect later | aspect.name | identifier | "barrier_comfort" || "cue_tinnitus" | aspect | ||||||||||||||||||||||||||||
39 | Identifier of the construct | A unique identifier of this construct. This is either the UCID of the construct, if this is a determinant or proxy; or an identifier from the list provided in the 'variable identifiers' list in the extraction instructions - see https://extending-the-earcheck.gitlab.io/dct-files | aspect.constructIdentifier | ucid | aspect | |||||||||||||||||||||||||||||
40 | Hearing protection behavior | When construct is a (proxy of) hearing protection behavior, specify what kind of behavior: not specified ("ns"), wearing hearing protection ("hp"), restricting exposure to loud music or noise ("restr") , limiting volume of music players or speakers ("limit"), using safe headphones ("safe"), a combination of at least two of the aformentioned behaviors ("multiple"), or other ("other"). | aspect.constructHear | categorical | "ns" || "hp" || "restr" || "limit" || "safe" || "multiple" || "other" | aspect | ||||||||||||||||||||||||||||
41 | Content | The content of the aspect, literally as reported in the study | asp.content | string.mandatory | "Aspect text" | aspect | ||||||||||||||||||||||||||||
42 | Description | A description of this variable (can be more extensive than the name) | asp.description | string | "" | aspect | ||||||||||||||||||||||||||||
43 | Comment | Any relevant comments the coder wants to add | asp.comment | string | "" | aspect | ||||||||||||||||||||||||||||
44 | Results | Results based on the data collected in this study | results | |||||||||||||||||||||||||||||||
45 | Univariate | A single statistic about a single variable. | univariate | results | TRUE | TRUE | ||||||||||||||||||||||||||||
46 | Name of result | A unique name (in this study), to easily find / meta-analyse / group this result later | uni.name | identifier | "prevalence" || "reliability" | univariate | ||||||||||||||||||||||||||||
47 | Variable | The variable this result pertains to. | uni.variable | string.entityRef.mandatory | univariate | oper.name | ||||||||||||||||||||||||||||
48 | Subsample | If applicable, the subsample this result pertains to. | uni.subsample | string.entityRef.optional | univariate | subsample.name | ||||||||||||||||||||||||||||
49 | Value | If applicable, the value this result pertains to. For example, for a categorical variable, three percentages can be specified: one for each possible category (as identified by the corresponding value). | uni.value | integer.fieldRef.optional | univariate | oper.values | ||||||||||||||||||||||||||||
50 | Moment | If applicable, the measurement moment this result pertains to. For example, for a longitudinal study, this can be '2' to specify that this is the value of this variable at the second measurement moment. | uni.moment | integer.fieldRef.optional | univariate | oper.moment | ||||||||||||||||||||||||||||
51 | Categorical variable value | If applicable, the value for a categorical variable (for example, for specifying the experimental condition for a subsample). | uni.category | integer | univariate | |||||||||||||||||||||||||||||
52 | Minimum value | If applicable, the minimum value in the data series of this variable. | uni.minimum | numeric | univariate | |||||||||||||||||||||||||||||
53 | Maximum value | If applicable, the maximum value in the data series of this variable. | uni.maximum | numeric | univariate | |||||||||||||||||||||||||||||
54 | Median value | If applicable, the median of this variable. | uni.median | numeric | univariate | |||||||||||||||||||||||||||||
55 | Mean value | If applicable, the mean of this variable. | uni.mean | numeric | univariate | |||||||||||||||||||||||||||||
56 | Percentage | If applicable, the percentage of observations in this category (for a categorical variable) or scoring TRUE (for a logical variable). | uni.percentage | numeric | univariate | |||||||||||||||||||||||||||||
57 | Sample size | This can be used to specify the sample size, if it is different from the sample size of the entire sample or the relevant subsample. | uni.n | integer | univariate | |||||||||||||||||||||||||||||
58 | Standard deviation | If applicable, the standard deviation of this variable. | uni.sd | numeric | univariate | |||||||||||||||||||||||||||||
59 | Qualitative | If applicable, the original text as extracted from the source material. | uni.qualitative | string | univariate | |||||||||||||||||||||||||||||
60 | Comment | Any relevant comments the coder wants to add | uni.comment | string | univariate | |||||||||||||||||||||||||||||
61 | Association | An association between two variables. | association | results | TRUE | TRUE | ||||||||||||||||||||||||||||
62 | Name of result | A unique name (in this study), to easily find / meta-analyse / group this result later | assoc.name | identifier | "mainHypothesisTest" || "manipulationCheck" | association | ||||||||||||||||||||||||||||
63 | First variable | The name of the first variable. | assoc.var1name | string.entityRef.mandatory | association | oper.name | ||||||||||||||||||||||||||||
64 | Values of first variable | Values this variable pertains to (e.g. in post hoc analyses). | assoc.var1values | integer.fieldRef.optional | association | oper.values | ||||||||||||||||||||||||||||
65 | Measurement moment of first variable | To which measurement moment of the first variable this association pertains. | assoc.var1moment | string.fieldRef.optional | association | oper.moment | ||||||||||||||||||||||||||||
66 | Second variable | The name of the second variable. | assoc.var2name | string.entityRef.mandatory | association | oper.name | ||||||||||||||||||||||||||||
67 | Values of second variable | Values this variable pertains to (e.g. in post hoc analyses). | assoc.var2values | integer.fieldRef.optional | association | oper.values | ||||||||||||||||||||||||||||
68 | Measurement moment of second variable | To which measurement moment of the second variable this association pertains. | assoc.var2moment | string.fieldRef.optional | association | oper.moment | ||||||||||||||||||||||||||||
69 | Subsample | If applicable, the subsample this result pertains to. | assoc.subsample | string.entityRef.optional | association | subsample.name | ||||||||||||||||||||||||||||
70 | Sample size | This can be used to specify the sample size, if it is different from the sample size of the entire sample or the relevant subsample. | assoc.n | integer | association | |||||||||||||||||||||||||||||
71 | Degrees of freedom | This can be used to specify the degrees of freedom for this analysis, in case for example a t or an F value is extracted. | assoc.df | numeric.multi | association | |||||||||||||||||||||||||||||
72 | t value | The t value of this association. | assoc.t | numeric | association | |||||||||||||||||||||||||||||
73 | F value | The F value of this association | assoc.F | numeric | association | |||||||||||||||||||||||||||||
74 | Pearson r | The bivariate correlation of this association | assoc.r | numeric | association | |||||||||||||||||||||||||||||
75 | Chi square | The chi squared value of this association | assoc.chisq | numeric | association | |||||||||||||||||||||||||||||
76 | Raw table | A table with the frequencies | assoc.crosstab | matrix.crosstab | association | |||||||||||||||||||||||||||||
77 | Cohen's d | The Cohen's d value of this association | assoc.d | numeric | association | |||||||||||||||||||||||||||||
78 | Eta squared | The eta squared value of this association | assoc.etasq | numeric | association | |||||||||||||||||||||||||||||
79 | Omega squared | The omega squared value of this association | assoc.omegasq | numeric | association | |||||||||||||||||||||||||||||
80 | Odds Ratio | The odds ratio of this association | assoc.OR | numeric | association | |||||||||||||||||||||||||||||
81 | p value | The association's p value (only extract if nothing else is available) | assoc.p | numeric | association | |||||||||||||||||||||||||||||
82 | Covariates | Number of covariates (for multivariate analyses). | assoc.covariates | integer | association | |||||||||||||||||||||||||||||
83 | Comment | Any relevant comments the coder wants to add | assoc.comment | string | association | |||||||||||||||||||||||||||||
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