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# Validator functions for hypothesis and research goals
import re
from typing import Dict, List, Tuple, Union, Optional
def validate_hypothesis(hypothesis: str) -> Tuple[bool, List[str]]:
"""Validate a scientific hypothesis for basic quality criteria.
Args:
hypothesis: The hypothesis text to validate
Returns:
A tuple containing (is_valid, list_of_issues)
"""
issues = []
# Check for minimum length
if len(hypothesis) < 10:
issues.append("Hypothesis is too short")
# Check for maximum length
if len(hypothesis) > 1000:
issues.append("Hypothesis is too long (>1000 characters)")
# Check if it's a statement, not a question
if hypothesis.strip().endswith("?"):
issues.append("Hypothesis should be a statement, not a question")
# Check for testability indicators
testability_terms = ["increase", "decrease", "affect", "change", "cause",
"lead to", "result in", "correlate", "association",
"relationship"]
has_testability_term = any(term in hypothesis.lower() for term in testability_terms)
if not has_testability_term:
issues.append("Hypothesis may not be testable - consider including terms that describe relationships, effects, or changes")
# Check for vague terms
vague_terms = ["very", "extremely", "many", "most", "few", "several", "a lot",
"better", "worse", "good", "bad", "significant"]
found_vague_terms = [term for term in vague_terms if f" {term} " in f" {hypothesis.lower()} "]
if found_vague_terms:
issues.append(f"Hypothesis contains vague terms: {', '.join(found_vague_terms)}")
# Check if it appears to have variables/factors to test
if not re.search(r"\b(if|when|as|while)\b", hypothesis.lower()) and \
not re.search(r"\b(causes|affects|influences|impacts|changes|increases|decreases)\b", hypothesis.lower()):
issues.append("Hypothesis may not clearly specify variables or relationships to test")
# Determine overall validity
is_valid = len(issues) <= 1 # Allow one minor issue
return is_valid, issues
def validate_research_goal(goal: str) -> Tuple[bool, List[str]]:
"""Validate a research goal for basic quality criteria.
Args:
goal: The research goal text to validate
Returns:
A tuple containing (is_valid, list_of_issues)
"""
issues = []
# Check for minimum length
if len(goal) < 10:
issues.append("Research goal is too short")
# Check for maximum length
if len(goal) > 500:
issues.append("Research goal is too long (>500 characters)")
# Check if it starts with an appropriate verb
appropriate_starts = ["to ", "the goal is to ", "this research aims to ",
"we aim to ", "this study seeks to ", "the purpose is to "]
has_appropriate_start = any(goal.lower().startswith(start) for start in appropriate_starts)
if not has_appropriate_start:
issues.append("Research goal should typically start with 'To...' or similar phrase")
# Check for specific research action verbs
research_verbs = ["investigate", "explore", "analyze", "determine", "identify",
"examine", "understand", "evaluate", "assess", "develop",
"discover", "explain", "test", "validate", "characterize"]
has_research_verb = any(f" {verb} " in f" {goal.lower()} " for verb in research_verbs)
if not has_research_verb:
issues.append("Research goal should include specific research action verbs")
# Check if it's a question instead of a goal statement
if goal.strip().endswith("?"):
issues.append("Research goal should be a statement, not a question")
# Determine overall validity
is_valid = len(issues) <= 1 # Allow one minor issue
return is_valid, issues
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