Ib Biology Lab Rubric 4k651j

IB Biology Internal Assessment Evaluation Rubric

Name __________________________ Lab # ______ Date _______________

Design (34) Title: (4) •

Properly states essential relationship between IV and DV:

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(The effect of IV on DV as measured by…, clear, concise)

Research Question: (4) •

Properly presents a snapshot of the entire experiment:

(DV=f(IV), range of values for IV, methods & units of measurement of DV)

Independent Variables: (4) •

Properly describes details of IVs:

(Describes range of values for IV, equipment needed to measure IV, units of measurement, states sample size as n= #, clear, concise)

Dependent Variables: (4) •

Properly describes details of DVs:

(Describes equipment needed to measure DV, describes methods and units of measurement, clear, concise)

Hypothesis: (6) • Clearly states reasonable prediction as H0 and HA:

(States DV= f(IV) in of H0 and HA , quantitative if appropriate, Includes units of measurement, describes relationship, e.g. positive linear)

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Clearly explains justification for prediction:

(Explains DV=f(IV) in of a biological cause and effect relationship)

Materials: (4) •

Clearly describes all equipment & materials:

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Clearly represents experiment graphically:

(Properly describes equipment & organisms, materials quantified: e.g. time, concentration, volume, number, model, etc.) (Drawing illustrating how DV=f(IV) is measured)

Method: (8) •

Allows for collection of adequate relevant data:

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Controls for variables:

(Experiment can be successfully replicated from instructions alone, describes how both IV and DV are measured including units, states sample size as n=#, describes physical layout of treatments, considers preliminary trials and equilibration periods) (ensures that the DV=f(IV) relationship is not affected by extraneous variables, describes how CVs are kept constant across all treatments )

Data Collection & Presentation (36) Qualitative Data: (4) •

Describes unquantifiable aspects of the experiment:

(Labeled, 1st D entry, clear & thorough)

Quantitative Data: (12) •

Records raw data clearly in appropriate tables:

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Appropriately presents raw data:

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Appropriately states uncertainties:

(Columns name DV measured in proper S.I. units with appropriate precision and with only significant figures, rows name IV for which data is collected, further divisions shown for replicates) (Tables numbered, titles state DV=f(IV), columns & rows properly represent experimental design, spaces for replicates and means) (Defined as + for all measured variables, using proper units & precision)

Data Processing: (12) •

Appropriately transforms of data:

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Appropriately measures variability of data:

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Appropriately measures statistical significance of data:

(Properly determines totals, means, rates, and/or % as relevant) (Properly determines standard deviation, SE, 95% CI for DVs)

(Evaluates H0 and HA using appropriate statistical test: 95%CI, T-test, x2, appropriately rejects/accepts H0 /HA using appropriate P value)

Data Presentation: (8) • Appropriately represents DV = f(IV) with graphs/tables:

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(Appropriate type of graph/table selected, axes/columns/row properly selected, scale properly quantified, data points properly located, appreciation of continuous vs. discontinuous data, line of best fit for continuous data)

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Clearly presents DV = f(IV) with graphs/tables:

(Figure properly numbered and labeled stating DV=f(IV), axes properly labeled with appropriate units, error bars properly placed and defined, key defines variables when appropriate, multiple data sets clear & easy to interpret)

Conclusion & Evaluation (22) Conclusion: (8) •

Clearly states a conclusion:

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Appropriately s conclusion with reference to D:

(Results interpreted in context of hypothesis DV=f(IV), which is ed/not ed rather than proved/disproved or correct/incorrect, reasonable explanation of observed relationship between IV and DV) (Cites specific, relevant data from tables and figures, accepts/rejects H0 or HA based on stated results of statistical test)

Evaluation: (6) •

Critically evaluates limitations of experimental design:

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Properly defines errors:

(Identifies and describes both design aspects and performance aspects of the experiment y that led to weaknesses in the results) (Appropriately describes errors as systematic or random, and as human or equipment errors)

Modifications: (6) •

Suggests realistic improvements for experimental design:

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Suggestions relate to identified limitations:

(Suggests modifications that are reasonable in relationship to resources and time available in a standard high school laboratory) (Suggests improvements for both the design aspects and performance aspects of the experiment that are identified in the evaluation)

Citations: (2) •

Uses APA formatted citations for works referenced:

Manipulative Skills (8) Follows instructions: (3) •

Follows instructions accurately, adapts to new circumstances 1 2 3

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Seeks assistance only when required

Carries out techniques: (3) • Competent and methodical in the use of a range of techniques and equipment

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Works safely & ethically: (2) •

Pays attention to safety issues; does not expose self or others to 0 2 Safety risks, experiments have little or no negative effect on environment; inflicts no pain or harm living animals, & shows due consideration to human subjects, including informed consent

Comments: _____________________________________________________________

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Total Evaluation:

Points: _________

Percentage: _________